The ancient library's corridors were labyrinthine, with countless passages branching off in every direction. Maya had been wandering for what felt like hours, her footsteps echoing in the silence. Each turn seemed to lead to another identical hallway, and she began to wonder if she would ever find her way back to the main reading room where her research materials waited.
The word 'labyrinthine' most likely means: Answer: maze-like and confusing to navigate
The context clues 'countless passages branching off in every direction,' 'Each turn seemed to lead to another identical hallway,' and Maya wondering 'if she would ever find her way back' all indicate that labyrinthine means maze-like and confusing. The passage describes the physical layout and navigation difficulty, not lighting (A), age (C), or sound (D).
- The committee's decision was _______ since three members voted in favor, three voted against, and one member was absent from the crucial meeting.
Answer: inconclusive due to the lack of clear majority
With three votes for and three against, there's a tie with no clear majority to make a decision. 'Inconclusive' means not leading to a definite result. Choice A is factually wrong (members disagreed), B assumes information not given (postponement), and D focuses on controversy rather than the mathematical impossibility of reaching a decision with tied votes.
- The detective's investigation was _______ by the fact that the only witness had disappeared, leaving behind no forwarding address or contact information.
Answer: hindered by the lack of available testimony
The context indicates a negative impact on the investigation - the witness 'had disappeared' with 'no forwarding address.' This creates an obstacle by removing a source of testimony. 'Hindered' means obstructed or impeded. Choice A is too general, C suggests improvement rather than obstruction, and D implies speed increase which contradicts the problematic situation described.
- Based on the chart, the library's most popular genre last month was mysteries, so the librarian decided to order an ________ supply of mystery novels.
Answer: extra
Because demand is high, an 'extra' supply is logical. Scarce means few, random means without plan, and outdated means old—none fit the need for more books.
- Refer to the timeline below. Since the invention of the smartphone came after the desktop computer, it can be called a more ________ device.
Answer: recent
The timeline shows smartphones invented later, so they are more 'recent.' Ancient, primitive, and prehistoric mean very old, which conflicts with the graphic.
- The artist's latest sculpture was so _______ that visitors to the gallery often stopped mid-conversation to stare, unable to look away from its commanding presence.
Answer: compelling that it captured complete attention
This question tests your ability to use context clues to determine which word best completes a sentence based on the evidence provided. When you encounter sentence completion questions, look carefully at the descriptive details that follow the blank—they're your roadmap to the correct answer.
The key context clue here is the phrase "visitors to the gallery often stopped mid-conversation to stare, unable to look away from its commanding presence." This describes people being so captivated by the sculpture that they couldn't help but focus entirely on it. The word you need must explain why people would have this intense, focused reaction.
Choice D, "compelling that it captured complete attention," perfectly matches this context. When something is compelling, it draws people in and holds their focus completely, which aligns exactly with visitors stopping conversations and being unable to look away.
Choice A is wrong because while "beautiful that it inspired feelings of joy" might cause people to admire the sculpture, it doesn't explain the intense, transfixed reaction described. Choice B, "unusual that it confused most observers," suggests bewilderment rather than the captivated attention shown in the passage. Choice C, "expensive that it attracted wealthy collectors," doesn't connect to the immediate reaction of gallery visitors stopping mid-conversation to stare.
For sentence completion questions on the CogAT, always read past the blank to find descriptive clues about the missing word. The context after the blank often provides a direct explanation or example of what the missing word should mean.
- Use the bar graph. Seeing that turtles are the slowest animals on the chart, Zoe described the turtle's movement as ________.
Answer: sluggish
Sluggish' means slow, matching the turtle's lowest speed on the bar graph. Rapid, blazing, and speedy all mean fast, opposite of what the graph shows.
The chef's new restaurant received mixed reviews. While food critics praised the innovative menu and creative presentation, many complained about the service. Waitstaff seemed overwhelmed, orders were frequently delayed, and several diners reported incorrect meals being delivered to their tables.
Based on the passage, the restaurant's service could best be described as: Answer: inadequate and poorly managed during operations
The passage provides specific evidence of service problems: 'waitstaff seemed overwhelmed,' 'orders were frequently delayed,' and 'incorrect meals being delivered.' These details point to inadequate and poorly managed service. Choice A contradicts the evidence, B confuses service with food quality, and D introduces cost information not mentioned in the passage.
- Use the Venn diagram. Because dolphins appear in both circles, we can say that dolphins ________ live in water and breathe air.
Answer: simultaneously
Being in the overlap indicates both traits at once, so 'simultaneously' fits. Rarely and never contradict inclusion; accidentally adds unrelated meaning.
The new technology promised to revolutionize communication, but early adopters quickly discovered its limitations. Battery life was disappointingly short, the interface was confusing to navigate, and connection speeds were inconsistent. Many users returned to their previous devices within weeks of purchase.
The passage suggests that the new technology was: Answer: promising in concept but flawed in execution
When analyzing reading comprehension questions about the author's perspective or what a passage "suggests," you need to distinguish between what's explicitly stated and what's implied through the overall tone and evidence presented.
The passage follows a classic structure: it introduces something with initial promise ("promised to revolutionize communication") but then systematically lists multiple problems that emerged in practice. The phrase "but early adopters quickly discovered its limitations" signals a contrast between expectation and reality. The specific problems mentioned - poor battery life, confusing interface, and inconsistent speeds - all point to implementation failures rather than conceptual flaws. The final detail that users "returned to their previous devices within weeks" confirms the technology failed to deliver on its promise.
Looking at the wrong answers: Choice A misses the entire second half of the passage, which details significant problems and user abandonment. Choice B introduces the concept of expense and cost-justification, which the passage never mentions - this is a common trap where appealing but irrelevant ideas are inserted. Choice C suggests the technology was "ultimately worth" the difficulties, but the passage shows the opposite: users gave up and switched back to old devices.
Choice D correctly captures both elements: the initial promise (concept) and the practical failures (execution problems).
For CogAT reading questions, watch for this "promise versus reality" structure. When you see words like "but," "however," or "quickly discovered," the author is likely contrasting expectations with actual outcomes. Focus on the overall arc of the passage, not just individual details.
The mountain trail had become treacherous after the storm. Loose rocks shifted underfoot, fallen branches blocked the path, and patches of mud made each step uncertain. Experienced hikers recommended postponing any attempts to reach the summit until conditions improved.
In this context, 'treacherous' most nearly means: Answer: dangerous and likely to cause harm or injury
The specific hazards described ('loose rocks shifted,' 'each step uncertain') and the recommendation to 'postpone attempts' indicate genuine danger, not just difficulty. 'Treacherous' in this context means dangerous and likely to cause harm. Choice B suggests positive outcomes despite difficulty, C focuses only on unpleasantness, and D emphasizes unfamiliarity rather than danger.
