The correct answer is "speedy," orin a quick manner, as "swift" meansoccurringor moving very quickly。"Slow" is an opposite of "swift" and "dance" is not related in meaning to "swift" at all. While to "run" does meanto move quickly, "run" is a verb and "swift" is an adjective, so their meanings are very different.

The word "sluggish" meanssloworlazy."Slow" is the best choice, as it is a part of the definition of "sluggish." Considering the other choices, "stiff" meansrigid。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 meansslug-like, as inas slow as a slug。

"Nimble" meansquick and agile。"Agile" is the best choice because it meanseasily able to move quicklyand is part of the definition of "nimble." Considering the other choices, "robotic" meansacting in an unchanging and unemotional manner, like a robot,"correct" meansrightortrue,and "indifferent" meansnot caring.

"Idle" meansunmovingornot active."Stationary" is the best choice because it also meansunmoving.Considering the other choices, "hidden" meansnot in plain sight,"deter" meansrestrain from doing,and "vex" meansangerorannoy.

"Regular" is an adjective that meansoccurring at even intervals,frequent, orusual。因此,the answer choice closest in meaning to "regular" is "usual," an adjective that meanstypically occurring。None of the other answers are close in meaning to "regular": "atypical" is an antonym of "regular" and meansnot typical;"regulated" meanscontrolled; and "trite" meansunoriginal。

“Sluggish” meanstired, lethargic and lacking energy。

Someone who is "sluggish" islazy and slow, so "lazy" is the correct answer.None of the other answer choices are close in meaning to "sluggish": "debilitated" meansweakenedorhindered; "depressed" meansfeelingsad over a period of timeorhaving the condition depression; and "dull" meansboringorblunt。

The word "mature" or "maturity" are used to describe the character traits that come to something as it ages. In some ways, we talk about "mature" people, but in others, we can talk about "mature" fruits or cheese—cheese or fruits that have "come of age" and are now usesful. A number of the options try to trick you into choosing an answer based merely on age. Remember, though, maturity does not necessarily come with age. For example, you might know someone who is twenty years older than you but who never does any work and always relies upon other people. We would be quite wrong to call such a person mature.

Certainly, we can talk about "emotional maturity," which is a type of maturity. Someone who always gets angry or moody is probably not very emotionally mature. However, another general meaning for "mature" is "dependable." A mature person is someone who accepts responsibilities and can be depended upon to follow through on promises. This is the best option among those options given.

For something to be incessant, it means that it iscontinual.For instance, an incessant noise indicates that the noise repeats itself.

"Inconvenient" is an adjective consisting of the negative prefix "in-" and "convenient," so we can infer that it means something like "not convenient"; it actually means "causing trouble, difficulties, or discomfort." So, we need to pick out an answer choice that means something like "not convenient" or "causing trouble." "Timely," then, cannot be the correct answer, because "timely" is an adjective that means "done or occurring at a favorable or useful time; opportune," making it an antonym, not a synonym, of "inconvenient." "Inopportune," however, is an adjective that consists of the negative prefix "in-" and "opportune," so it means "not opportune," or more specifically, "occurring at an inconvenient or inappropriate time." Because "inopportune" is the answer choice closest in meaning to "inconvenient," "inopportune" is the correct answer.