"Frequent" means happening again and again with little time in between events. Anorther word for "frequent" is often, so "often" is the correct answer. As for the other answer choices, "jealous" means envious or wanting what someone else has, "usually" means under normal circumstances, a "burrow" is a hole in the ground that certain animals dig and live in, and to "burrow" means to dig a hole in the ground, and "modest" means not taking as much credit as one should for one's achievements or talent.

In this question, the word "novel" is being used as an adjective, meaning new or inventive. The only word with a similar meaning is "innovative_,"_ which means original or new. "Celebrated" means renowned, while "literary"means having to do with literature or reading, and was meant to throw you off if you had only seen the stem word as a noun (meaning a book-length work of fiction) rather than as an adjective. "Puzzling" means confusing or perplexing .

“Abrupt” means sudden and unexpected. To provide further help, “outlandish” means bizarre, peculiar, or strange; “dogmatic” means bound by strict, inflexible rules; “miserable” means very sad; “circumstantial” means owed to circumstance, owed to chance.

When we describe someone's action as being "prompt," we are saying that it is speedy or quick. Perhaps you have heard your parents say that the service at a restaurant or store is "prompt." This means that it is quick and without delay. The word "rapid" means "quick," so it is the best option for a synonym.

"Urgent" means pressing or immediate, so "pressing" is the correct answer. "Urgent" has a meaning different from that of "repetitive," which means tedious due to repetition,"steady," which means unvarying or consistent; and "unending," which means not having an end or lasting for a very long time.

You almost certainly know that the movement of a snake is called "slithering." While this kind of movement is not "crawling" in the way that a human baby crawls, it is a slow movement that is very close to the ground. For this reason, "crawl" can be an acceptable synonym. Since there are no better options, this is the correct choice for this question.

"Annual" means on a yearly basis, so "yearly" is the correct answer. "Kind-hearted" means nice and compassionate. "Difficult" means hard or tough to complete. "Stressful" means causing stress or anxiety. "Cooperative" means collaborative or working well with another person or others in a group.

“Consecutive” means occurring in order, one after the other. This is closest in meaning to “successive.” To provide further help, “incoherent” means not able to be understood; “comparable” means able to be compared, similar; “consensus” means agreement; “proclivity” means tendency of doing something.

"Nimble" means quick and agile. "Agile" is the best choice because it means easily able to move quickly and is part of the definition of "nimble." Considering the other choices, "robotic" means acting in an unchanging and unemotional manner, like a robot, "correct" means right or true , and "indifferent" means not caring.

The word "sluggish" means slow or lazy. "Slow" is the best choice, as it is a part of the definition of "sluggish." Considering the other choices, "stiff" means rigid . While it may seem related, the word "sluggish" describes some sort of motion, though very little, while "stiff" does not. "Active" is an antonym of the word "sluggish." "Slug" is only related because sluggish means slug-like, as in as slow as a slug.