Form, Structure and Sense Test- 2 - SAT MCQ

Choice A. This choice creates a confusing and ungrammatical sentence. "It's" is a contraction for "it is". We already have the verb "nurses" in this clause, so we shouldn't add the verb "is".

Choice B. This choice creates a pronoun-antecedent agreement error. "Their" is a plural pronoun, but the subject of the sentence is "the animal", a singular noun.

Choice C. This choice creates a pronoun-antecedent agreement error. "They're" is a contraction of "they are" a plural pronoun and verb, but the antecedent "the animal" is singular. Also, we don't need the extra verb "are" — we already have a main verb in this clause, so adding "are" would be confusing and ungrammatical.

Choice D. This is the best choice. The singular possessive pronoun "its" agrees with the singular antecedent "the animal" and indicates that the "young" belong to it.

Choice A. This is the best choice. The subject of the sentence is "The African Games Co-production Market". That's one market, so it's a singular noun, which means it needs a singular verb. "Promotes" is the only singular verb among the choices.

Choice B. This choice creates a subject-verb agreement error. The subject "The African Games Co-production Market" is singular, but the verb "promote" is plural.

Choice C. This choice creates a subject-verb agreement error. The subject "The African Games Co-production Market" is singular, but the verb "are promoting" is plural.

Choice D. This choice creates a subject-verb agreement error. The subject "The African Games Co-production Market" is singular, but the verb "have promoted" is plural.

Choice A. This choice creates a subject-verb agreement error. The subject "tools" is plural, but the verb "has enabled" is singular.

Choice B. This is the best choice. The plural verb "enable" agrees with the plural subject "tools".

Choice C. This choice creates a subject-verb agreement error. The subject "tools" is plural, but the verb "is enabling" is singular.

Choice D. This choice creates a subject-verb agreement error. The subject "tools" is plural, but the verb "enables" is singular.

Choice A. This choice creates a subject-modifier placement error. The subject of the modifier "a nearly frictionless state" is "superlubricity". Subject-modifier placement requires a modifier and its subject to be next to one another, so "superlubricity" must be the first word in the missing clause.

Choice B. This is the best choice. The subject of the modifier "a nearly frictionless state" is "superlubricity". Subject-modifier placement requires a modifier and its subject to be next to one another, so "superlubricity" must be the first word in the missing clause.

Choice C. This choice creates a subject-modifier placement error. The subject of the modifier "a nearly frictionless state" is "superlubricity". Subject-modifier placement requires a modifier and its subject to be next to one another, so "superlubricity" must be the first word in the missing clause.

Choice D. This choice creates a subject-modifier placement error. The subject of the modifier "a nearly frictionless state" is "superlubricity". Subject-modifier placement requires a modifier and its subject to be next to one another, so "superlubricity" must be the first word in the missing clause.

Choice A. This choice creates a tense issue. "Will leverage" is the future tense, but Lincoln leveraged his rivals' talents in 1860, so the future tense isn't appropriate.

Choice B. This choice creates a tense issue. "Is leveraging" is the present tense, but Lincoln leveraged his rivals' talents in 1860, so the present tense isn't appropriate.

Choice C. This choice creates a tense issue. "Has leveraged" is the present perfect tense, which is used for an action that began in the past and continues into the present. Lincoln started leveraging his rivals' talents in 1860—it's definitely not still happening today. So the present perfect tense isn't appropriate.

Choice D. This is the best choice. The subject of the verb is "Lincoln", and the first sentence tells us that we're talking about something that Abraham Lincoln did in 1860. So the simple past tense "leveraged" fits the logic of the text.

Choice A. This is the best choice. We already have the verb "left" in this clause. The next verb to follow needs to be an infinitive like "to join": Ochoa left her position to join the training program.

Choice B. This choice creates a tense error and a verb usage error. It's in the present tense, but the text is in the past tense. Also, the sentence is basically telling us that she left her job and joined the training program. "Ochoa left her position is joining the program" doesn't work: it's missing the "and".

Choice C. This choice creates a verb usage error. Basically, the sentence is telling us that she left her job and joined the training program. "Ochoa left her job joined the program" doesn't work: it's missing the "and".

Choice D. This choice creates a tense error and a verb usage error. It's in the present tense, but the text is in the past tense. Also, the sentence is basically telling us that she left her job and joined the training program. "Ochoa left her job joins the program" doesn't work: for one thing, it's missing the "and". It's also the wrong tense (present).

Choice A. This choice creates a sentence fragment. There's no main verb elsewhere in the sentence, so we need a form of the verb "acknowledge" that can go with the subject "the International Astronomical Union" and serve as that main verb. The "-ing" form can't do that.

Choice B. This choice creates a sentence fragment. There's no main verb elsewhere in the sentence, so we need a form of the verb "acknowledge" that can go with the subject "the International Astronomical Union" and serve as that main verb. "Having acknowledged" can't do that.

Choice C. This is the best choice. It's the only choice that offers a form of the verb "acknowledge" that can go with the subject "International Astronomical Union" to make a complete sentence. This might seem like an odd use of "would", but when speaking from a point of view in the past, we can actually use "would" to express something that happened later. That's the case here: 200 years after Wang Zhenyi's death, the IAU would finally acknowledge her contributions.

Choice D. This choice creates a sentence fragment. There's no main verb elsewhere in the sentence, so we need a form of the verb "acknowledge" that can go with the subject "the International Astronomical Union" and serve as that main verb. "To acknowledge" can't do that.

Choice A. This choice creates a verb form error. The missing verb is part of the same clause as the verb "premiered", and "Price" is the subject of both. So we need the past-tense form "developed" in order to match "premiered".

Choice B. This is the best choice. The missing verb is part of the same clause as the verb "premiered", and "Price" is the subject of both. So we need the past-tense form "developed" in order to match "premiered".

Choice C. This choice creates a verb form error. The missing verb is part of the same clause as the verb "premiered", and "Price" is the subject of both. So we need the past-tense form "developed" in order to match "premiered".

Choice D. This choice creates a verb form error. The missing verb is part of the same clause as the verb "premiered", and "Price" is the subject of both. So we need the past-tense form "developed" in order to match "premiered".

Choice A. This choice uses the simple plural "photographers" and the singular possessive "photo's", which aren't correct. There's only one photographer (Adams) and there's more than one photo.

Choice B. This choice uses the simple plural "photographers", which isn't correct. There's only one photographer (Adams).

Choice C. This is the best choice. There's only one photographer (Adams), and the photos are his, so the singular possessive "photographer's" is correct. There's more than one photo, and nothing belongs to the photos, so the simple plural "photos" is correct.

Choice D. This choice uses the singular possessive "photo's", which isn't correct. There's more than one photo, and they don't possess anything, so the noun should be the simple plural "photos".

Choice A. This is the best choice. "Focuses" is a singular verb, so it agrees with the singular subject "each one of these plays".

Choice B. This choice creates a subject-verb agreement error. The subject "each one of these plays" is singular, but the verb "focus" is plural.

Choice C. This choice creates a subject-verb agreement error. The subject "each one of these plays" is singular, but the verb "are focused" is plural.

Choice D. This choice creates a subject-verb agreement error. The subject "each one of these plays" is singular, but the verb "were focused" is plural.