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The adjective "brief" describes something lasting only a short time or expressed in few words, so "short" is its closest synonym. The other choices describe duration in the opposite direction or qualities unrelated to length.
To "expand" is to grow larger in size or scope, so its antonym must describe becoming smaller. "Shrink" is the only option expressing decrease.
A finger is a digit that is part of a hand, so the relationship is part-to-whole. The matching part-to-whole pair is toe and foot, since a toe is a digit of the foot.
A hammer, wrench, and screwdriver are all hand tools used to fasten or adjust materials. A ladder is a piece of equipment for climbing, so it belongs to a different category.
The sentence calls for a noun meaning a path or track, which is "trail." The other words look or sound similar but carry different meanings that do not fit the context of walking through a forest.
The relationship is young animal to adult animal: a kitten is a young cat. Similarly, a cub is a young bear, preserving the same order of young-then-adult.
A cautious person acts with care to avoid danger or mistakes, so "careful" is the closest synonym. The other options describe a lack of caution or unrelated traits.
An author creates a book, so the second word should be the work created by the first. A composer creates a symphony, matching the creator-to-creation relationship.
The clause "even her critics were persuaded" shows the argument succeeded despite opposition, so it must have been convincing. "Compelling" means powerfully convincing and fits that logic.
"Scarce" means available in small supply. Its antonym must mean available in large supply, which is "plentiful."
A thermometer is an instrument that measures temperature. In the same way, a barometer is an instrument that measures atmospheric pressure.
The detail that every member voted the same way defines a decision that is fully agreed upon. "Unanimous" means shared by all members, which matches that clue exactly.
Thirst signals a need that is satisfied by drinking, so the pattern is a bodily need followed by the action that satisfies it. Hunger is a need satisfied by eating, matching the pattern.
Findings that overturn decades of accepted theory are radically new, so "revolutionary" fits. The other options suggest something ordinary or anticipated, which conflicts with "contradicting."
A drought is a severe condition that causes famine, so the first word names a cause and the second its harmful consequence. A flood similarly causes destruction, preserving the cause-and-harmful-effect pattern.
"Transparent" means allowing light through so objects behind can be seen. Its opposite is "opaque," which means light cannot pass through.
The contrast word "though" signals that the first impression differed from the later finding of hidden flaws. A plan that appears "sound," meaning sensible and free of defects, creates that contrast.
A microscope is an instrument used to view objects too small to see, such as a cell. A telescope is an instrument used to view distant objects, such as a star, so the object viewed is the match.
A miser hoards money to excess, so the second word names what the first person overvalues or consumes excessively. A glutton overconsumes food, matching that pattern.
The clause about avoiding commitment calls for a word meaning deliberately ambiguous. "Equivocal" describes language open to more than one interpretation, which is exactly what avoids commitment.
"Alleviate" means to relieve or make pain or difficulty less severe. The other options mean to worsen, to speed up, or to distribute, none of which matches relief.
A catalyst starts or speeds a reaction without being consumed, so the relationship is initiator to the process it sets off. A spark ignites a flame in the same initiating way.
A seed grows into a tree, so the second word names the living thing that develops from the first. An egg develops into a bird, matching that same growth relationship.
"Brief" describes something lasting only a little time or expressed in few words, which matches "short." The other choices describe brightness, manners, or weight and share no core meaning with brief.
A glove is worn on the hand, so the pair links a covering to the body part it covers. A boot is worn on the foot, giving the same relationship.
"Ancient" means very old, so its opposite must mean very recent or current. "Modern" carries that sense of the present.
The clue "landed exactly" shows the pass was accurate, so a word meaning exact fits. "Precise" expresses that accuracy.
A cockpit is the specific enclosed workspace where a pilot performs the job. The matching specific workspace for a surgeon is the operating room.
"Obtain" means to come to have something, which is exactly what "acquire" means. The other verbs describe giving, disregarding, or fixing.
A chapter is a major division within a book, so the pair links a part to the whole work that contains it. A stanza is a division within a poem.
The phrase "leaving out no detail" signals completeness, so the blank needs a word meaning complete and careful. "Thorough" fits that sense.
A teacher instructs and guides a student, so the link is guide to the person being guided. A coach instructs and guides an athlete in the same way.
"Generous" means willing to give freely, so its opposite describes someone unwilling to give. "Stingy" carries that meaning.
A drought is defined by the condition of dryness, so the pair links a weather event to its defining feature. A blizzard is defined by heavy snow and wind.
Closing a bridge until repairs are complete points to a danger, so the blank needs a word meaning hazardous. "Unsafe" supplies that meaning and explains the closure.
Words combine in sequence to build a sentence, so the pair links a unit to the larger sequence it forms. Notes combine to build a melody.
Beginners understanding immediately shows the explanation was clear, so the blank needs a word meaning clear. "Lucid" means easy to understand.
"Extol" means to speak of someone with great approval, which matches praising highly. The other verbs express disapproval, acceptance, or doubt.
Stubborn and flexible are opposites, so the second pair must also be opposites. The opposite of courageous is fearful.
Catching the enemy off guard and doing the unexpected signals a strategy that departs from convention. "Unorthodox" means unconventional, which fits.
Something fragile is easily broken, so the pair links a quality to the mishap it makes likely. Something slippery is easily fallen on, matching that pattern.
Praise for vivid scenes combined with a note about removable chapters shows mixed quality, so the blank needs a word meaning inconsistent. "Uneven" conveys that mixture.
A skeptic is characterized by doubt, so the pair links a person to the attitude that defines them. An optimist is characterized by hope.
"Downplay" means to present something as less important or serious than it truly is, which matches the definition given. The other verbs mean to magnify, examine, or settle.
The word "Although" sets up a contrast with later erosion of support, so the blank must describe a theory once thought impossible to challenge. "Unassailable" means beyond attack, which fits the contrast.
"Scarce" describes something in short supply. Its antonym must describe something available in large quantity, and "abundant" means exactly that. The other choices describe scarcity, price, or concealment rather than plentiful supply.
A reluctant person holds back from acting. The true opposite is someone who looks forward to acting, which is what "eager" conveys. The remaining options describe hesitation, care, or quietness, all of which are compatible with reluctance.
"Weary" means worn out or fatigued from effort. "Tired" carries that same sense of exhaustion. The other choices name a mood, an interest, or a habit of inattention, none of which matches fatigue.
The sentence stresses that even very small details matter. "Minute" (pronounced my-NOOT) means extremely small, which fits the emphasis on the smallest detail. "Trivial" suggests unimportance, which clashes with the detective's careful attention.
A puppy is a young dog, so the relationship links a young animal to its adult form. A kitten is a young cat, so "cat" completes the pair. The other options name a covering, a food, or a group rather than the adult animal.