All questions
Question 1
Li Ming is telling his friend about his weekend. He says: '我昨天已经做完作业了。'
Based on Li Ming's statement, which description best captures the grammatical meaning of 已经...了 in this sentence?
- The action of doing homework is still in progress and will continue into the future.
- The action of doing homework was completed before the time of speaking, emphasizing that it is finished. (correct answer)
- The action of doing homework happens repeatedly every day as a habit.
- The action of doing homework is being planned and has not yet started.
Explanation: When you see a grammatical structure question in Mandarin, focus on identifying the specific pattern and its function. The structure 已经...了 is a completion marker in Chinese, signaling that an action has been fully finished before the current moment of speaking.
In Li Ming's sentence '我昨天已经做完作业了,' 已经 means "already" and 了 at the end of the sentence confirms the action's completion. Together, they emphasize that the homework was done and finished — not just started, not ongoing, but completely over. The word 昨天 ("yesterday") further anchors this in past time, reinforcing that the action concluded before now. This makes B the correct answer: the homework was completed before the time of speaking, with emphasis on it being finished.
A is incorrect because 已经...了 signals completion, which is the opposite of an action still in progress. Nothing in the sentence suggests continuity into the future. C is wrong because habitual or repeated actions use different structures in Chinese, such as 每天 ("every day") combined with present-tense framing — there is no repetition implied here. D is incorrect because planning a future action would require structures like 要 or 打算 ("intend to/plan to"), and 已经...了 grammatically cannot describe something that hasn't started yet.
A helpful tip: whenever you see 已经 paired with 了, your first instinct should be "completed action." Think of 已经 as "already" pointing backward in time, and 了 as the period at the end of the sentence confirming closure. This pattern will appear frequently on this exam.
Question 2
A teacher asks students to translate: 'Don't bother him — he is currently working on the report.'
Which Mandarin sentence best expresses that the action is ongoing right now?
- 他写完报告了,别打扰他。 (He finished the report; don't bother him.)
- 他正在写报告,别打扰他。 (He is currently writing the report; don't bother him.) (correct answer)
- 他已经写报告了,别打扰他。 (He already wrote the report; don't bother him.)
- 他每天写报告,别打扰他。 (He writes the report every day; don't bother him.)
Explanation: When translating a sentence that emphasizes an action happening right now, you need to recognize which Mandarin grammatical structures signal present progressive (ongoing) action versus completed, habitual, or already-accomplished actions.
In Mandarin, the construction 正在 + verb (+ 呢) is the clearest marker of something happening at this very moment — equivalent to English's "-ing" form. Option B uses exactly this: 他正在写报告 means "He is currently in the middle of writing the report," perfectly matching the urgency of "don't bother him — he's working on it right now." B is your answer.
The three wrong choices each describe a different relationship to time. A (他写完报告了) uses 写完...了, where 完 indicates completion — he finished the report. This is the opposite of ongoing; bothering him now would be irrelevant. C (他已经写报告了) uses 已经...了, meaning "already," which similarly signals a completed or established action rather than one in progress. D (他每天写报告) uses 每天 ("every day"), placing the action in a habitual, repeated pattern — like saying "he writes reports daily" — which says nothing about what he's doing at this specific moment.
A useful memory trick: whenever you see 正在, think of it as a spotlight shining on an action happening right now. On questions testing aspect and tense in Mandarin, scan for these key time markers — 正在 (ongoing), 已经/了 (completed), 每天/常常 (habitual) — and match them to the temporal meaning the sentence requires.
Question 3
A student wants to say 'I was in the middle of sleeping when the phone rang.' Which structure correctly marks the sleeping as an ongoing background action?
- 我睡了觉,电话就响了。 (I slept, then the phone rang.) — using 了 after the verb to mark the action.
- 我正在睡觉,电话响了。 (I was in the middle of sleeping when the phone rang.) — using 正在 before the verb to mark ongoing action. (correct answer)
- 我已经睡觉了,电话响了。 (I had already slept when the phone rang.) — using 已经...了 to mark the action.
- 我睡觉呢,电话响了。 (I was sleeping, the phone rang.) — using only sentence-final 呢 without any pre-verbal aspect marker.
Explanation: When describing an ongoing background action that was interrupted, Mandarin uses specific aspect markers to signal that something was already in progress. This question tests whether you can identify the structure that frames sleeping as a continuous backdrop — not a completed event or a prior state.
The structure you need is 正在 + verb (+ 呢), which together signal an action actively unfolding at a specific moment. Answer B — 我正在睡觉,电话响了 — nails this perfectly. 正在 placed before the verb explicitly means "right in the middle of doing," making it clear that sleeping was the ongoing background when the phone interrupted it. This is the standard, unambiguous way to express the English past progressive in this context.
Answer A is wrong because 睡了觉 uses 了 as a perfective marker, meaning the sleeping was completed. The sentence reads "I slept, and then the phone rang" — two sequential events, not an interruption of an ongoing one.
Answer C uses 已经...了, which marks a state as already accomplished ("I had already slept"). This suggests the sleeping was fully finished before the phone rang — nearly the opposite of what's intended.
Answer D is tricky. Sentence-final 呢 can suggest ongoing action, but without a pre-verbal marker like 正在, the meaning is weaker and ambiguous. Relying on 呢 alone doesn't clearly establish the "in the middle of" sense that the question requires.
Study tip: When you see an interrupted ongoing action, look for 正在 before the verb — it's your clearest signal of background progressive action in Mandarin.
Question 4
Read the two sentences: (1) 他吃了饭。 (2) 他正在吃饭。
How do the aspect markers in sentences (1) and (2) differ in meaning?
- Sentence (1) uses 了 to show the action is completed, while sentence (2) uses 正在 to show the action is currently in progress and not yet done. (correct answer)
- Both sentences describe completed actions; the difference is only that sentence (2) adds emphasis with 正在.
- Sentence (1) uses 了 to show a future intention, while sentence (2) uses 正在 to show a past habit.
- Both sentences describe ongoing actions; 了 and 正在 are interchangeable aspect markers that both signal duration.
Explanation: When studying Mandarin Chinese grammar, it's important to understand that Chinese uses aspect markers rather than verb tenses to indicate how an action unfolds in time — whether it's completed, ongoing, experienced, etc. This question tests whether you can distinguish between two of the most common aspect markers: 了 (le) and 正在 (zhèngzài).
In sentence (1), 他吃了饭 uses 了 immediately after the verb 吃 (to eat). This perfective aspect marker signals that the action of eating has been completed — he ate (and finished eating). In sentence (2), 他正在吃饭 places 正在 before the verb, functioning as a progressive aspect marker — he is currently in the middle of eating, and the action is not yet finished. Answer A correctly captures this contrast: completion vs. ongoing progress.
Answer B is wrong because 正在 explicitly signals an action still in progress, not a completed one — it's the opposite of completion, so calling both sentences "completed actions" is a direct misreading. Answer C invents meanings that neither marker carries: 了 does not indicate future intention, and 正在 has nothing to do with past habits — those are entirely fabricated definitions. Answer D is wrong because 了 and 正在 are not interchangeable; they signal opposite aspectual meanings, and neither one inherently signals duration (that would be markers like 着 or time expressions).
A useful study tip: whenever you see 了 after a verb in Mandarin, think "done"; whenever you see 正在 before a verb, think "happening right now." This simple distinction will help you quickly eliminate wrong answers on aspect marker questions.
Question 5
A student is asked: 你的作业做好了吗?(Have you finished your homework?) The student replies: '还没有,我还在做呢。'
Which phrase in the student's reply most directly signals that the action is still ongoing and not yet finished?
- 还在...呢 (still in the middle of), because this structure marks the action as actively continuing at the present moment. (correct answer)
- 还没有 (not yet), because it signals that the expected action has not been completed up to this point.
- 做 (do/make), because action verbs without 了 always indicate an incomplete action.
- 呢 alone (sentence-final particle), because this particle by itself is the primary completion marker in Mandarin.
Explanation: When a question asks you to identify what signals an ongoing, incomplete action in Mandarin, you should look for grammatical structures — not just individual words — that combine aspect markers and particles to paint a full picture of the action's status.
The structure 还在...呢 is a classic Mandarin construction for expressing that something is still actively happening right now. Here, 还 (still/yet) emphasizes continuity, 在 functions as a progressive aspect marker (similar to "-ing" in English), and 呢 at the end adds a sense of "as we speak." Together, they form a tight unit that directly communicates: the action is in progress and not yet complete. That's why A is correct — it's the structure as a whole, not any single piece, that carries this meaning.
B is tempting because 还没有 does indicate incompletion ("not yet"), but it signals that a result or completion hasn't happened — it doesn't tell you the action is actively continuing at this moment. It's about the absence of completion, not the presence of ongoing effort.
C misapplies a rule. While 了 often marks completed actions, the absence of 了 alone doesn't confirm an action is ongoing — many context-dependent sentences omit 了 without implying anything about progress.
D gets it backwards. 呢 on its own is a mood or continuation particle; it is not a completion marker. Completion is typically marked by 了, not 呢.
As a study tip: always analyze structural combinations in Mandarin rather than isolating individual words — patterns like 还在...呢 work as a unit, and that's usually what exam questions are really testing.
Question 6
A classmate says: '你来的时候,我正在洗澡呢。' (When you came, I was in the middle of bathing.)
If your classmate wanted to change the sentence to say that the bathing was already finished before you arrived, which version would be correct?
- 你来的时候,我正在洗澡了。 — replacing 呢 with sentence-final 了 while keeping 正在 before the verb.
- 你来的时候,我洗澡正在了。 — moving 正在 to a position after the verb and adding 了.
- 你来的时候,我还在洗澡呢。 — replacing 正在 with 还在 to indicate that the bathing had ended sooner.
- 你来的时候,我已经洗完澡了。 — using 已经...完...了 to mark that bathing was fully done before arrival. (correct answer)
Explanation: When describing the timing of an action relative to another event in Mandarin, you need to choose the right grammatical structure. The original sentence uses 正在...呢 to describe an action in progress at a specific moment. To shift meaning to something already completed before that moment, you need completely different vocabulary and structure.
The structure 已经...完...了 is the key to expressing completion. 已经 means "already," the complement 完 attaches to the verb to signal the action reached its endpoint, and sentence-final 了 confirms a change of state. Together in D — 我已经洗完澡了 — they clearly communicate that the bathing was fully finished before you arrived. This is the only option that correctly conveys prior completion.
A is grammatically incoherent for this meaning. Swapping 呢 for 了 while keeping 正在 creates a contradiction: 正在 signals ongoing action, but sentence-final 了 signals completion. These two elements fight each other and produce an unnatural sentence that still doesn't express prior completion.
B scrambles the word order entirely. 正在 must come before the verb phrase, never after it — placing it after 洗澡 is simply ungrammatical in Mandarin.
C replaces 正在 with 还在, which actually means "still in the middle of" — the opposite of what's needed. 还在洗澡呢 means the bathing was still ongoing when you arrived, making it even further from the intended meaning.
A useful tip: whenever a question asks about completed action before a reference point, immediately look for 已经 + verb + 完 + 了. That four-part pattern is your signal for "already done."
Question 7
A student writes: '她正在看书呢。'
Which time expression or structure in this sentence signals that the action is ongoing at the moment of speaking?
- The word 书 (book), because reading materials indicate a present-tense activity.
- The word 她 (she), because third-person subjects always indicate present ongoing actions.
- The combination of 正在 and 呢, because together they emphasize that the action is currently in progress. (correct answer)
- The absence of 了, because any sentence without 了 automatically describes an ongoing action.
Explanation: When you encounter a question about expressing ongoing actions in Mandarin, focus on the grammatical markers — the specific words that signal tense and aspect — rather than vocabulary or subject choice.
In Mandarin, two key structures mark an action as happening right now: 正在 (zhèngzài), which means "in the process of," and the sentence-final particle 呢, which adds a sense of continuity or emphasis to an ongoing situation. Used together, as in '她正在看书呢,' they create a strong signal that the action is actively in progress at the moment of speaking. Neither one is required on its own — 正在 alone works, 呢 alone can hint at ongoing action — but together they reinforce each other powerfully. This is why C is correct.
A is wrong because the word 书 (book) is simply the object of the verb. The content of what someone is reading tells you nothing about when the action is happening — you could say 她看了书 (she read the book) and 书 hasn't changed.
B is wrong because the subject 她 (she) carries no tense information whatsoever. Mandarin subjects do not encode tense regardless of grammatical person.
D is wrong because the absence of 了 does not automatically mean an action is ongoing. Many sentences lack 了 and still describe habitual, future, or general actions. 了 marks completion, but its absence doesn't guarantee present continuous meaning.
As a study tip, memorize 正在...呢 as a "sandwich" structure for ongoing actions — if you see both, the sentence is almost certainly describing something happening right now.
Question 8
Which sentence correctly uses a time expression to show that an action is completed?
- 我正在吃饭,还没吃完。 (I am in the middle of eating; I haven't finished yet.)
- 他每天早上跑步。 (He runs every morning.)
- 我们已经看完那部电影了。 (We have already finished watching that movie.) (correct answer)
- 她还在学中文呢。 (She is still studying Chinese.)
Explanation: When talking about completed actions in Mandarin, you need to look for specific grammatical markers rather than just context clues. The key structures to recognize are 已经…了 ("already…"), verb + 完 (completion complement), and aspect particles like 了 that signal a finished action.
Choice C, 我们已经看完那部电影了, is the correct answer because it stacks two completion signals together: 已经 (already) indicates the action is prior to now, 看完 uses the resultative complement 完 to confirm the watching reached its endpoint, and the sentence-final 了 reinforces the completed state. Together, these elements unambiguously mark the action as done.
Choice A actually contradicts itself — 正在 signals an action in progress right now, and 还没吃完 explicitly states it is not yet finished. This choice tests whether you notice the sentence describes an incomplete, ongoing action. Choice B, 他每天早上跑步, uses a habitual/routine time expression (每天早上 — every morning) with no completion markers. It describes a recurring pattern, not a single finished event. Choice D, 她还在学中文呢, uses 还在…呢, which expresses that an action is still continuing — the opposite of completion.
A useful pattern to memorize: 已经 + verb + 完 + 了 is one of the strongest combinations for expressing completion in Mandarin. When a question asks about completed actions, scan for 完, 过, 已经, or 了 — and make sure the sentence isn't using 正在, 还在, or 每天, which all point away from completion.
Question 9
A student wants to express: 'By the time we arrived, they had already left.' Which sentence most accurately conveys this meaning using appropriate completion markers?
- 我们到的时候,他们正在离开。 (When we arrived, they were in the process of leaving.)
- 我们到的时候,他们还在走呢。 (When we arrived, they were still in the process of leaving.)
- 我们到的时候,他们要走了。 (When we arrived, they were about to leave.)
- 我们到的时候,他们已经走了。 (When we arrived, they had already left.) (correct answer)
Explanation: When expressing a completed action that occurred before another past event in Mandarin, you need to understand two key tools: the completion marker 了 (le) and the adverb 已经 (yǐjīng), meaning "already." Together, they signal that something was fully done prior to a reference point — equivalent to the English past perfect ("had already done").
Option D, 我们到的时候,他们已经走了, is correct because it uses both 已经 and 走了 (left + completion marker) to establish that their departure was a finished event before "we" arrived. This mirrors the English "had already left" perfectly.
Option A uses 正在 (zhèngzài), which indicates an action in progress at a specific moment — more like "was in the process of leaving." This describes simultaneous action, not a prior completed one. Option B uses 还在...呢, meaning the action was still ongoing, which actually implies they hadn't fully left yet — the opposite of what the sentence requires. Option C uses 要...了, a structure that signals something is about to happen, placing their departure in the near future relative to arrival, not the past.
A helpful pattern to remember: 已经 + verb + 了 is your go-to structure for "had already [done something]" in Mandarin. Think of 已经 as your "already" flag and 了 as the stamp that marks the action complete. When a question asks you to match an English past perfect sentence, scan the answer choices for this combination — if it's missing, the sentence likely won't carry the right meaning.