多益閱讀文法 - Subject-Verb Agreement

The correct answer is (B) has been relocated.

In this sentence, the subject is "furniture", which is a singular noun. so, it requires a singular verb for agreement. In this case, the action (relocating) is not done by the furniture itself, but rather, it is done to the furniture by someone else. Hence, we need a passive verb form. The present perfect passive form is "has been relocated", which shows that the action started in the past and has an effect on the present situation.

(A) "have relocated" is incorrect because "have" is the plural form, which does not agree with the singular subject "furniture". Besides, "relocated" in this form is active, which means the subject itself did the action, which is not true in this context.

(C) "has relocated" is also incorrect because it is an active form. This would mean that the furniture moved by itself, which is not logical.

(D) "relocated" is a simple past tense verb. While this form agrees with the singular subject, it is incorrect because it implies that the action is completely done and has no connection to the present, which does not fit the context of the sentence.

The correct answer is (D) describe.

The subject of the sentence here is 'regulations,' which is a plural noun. According to the subject-verb agreement rule, plural subjects require plural verbs. Hence, 'describe' is appropriate here as it is the plural form of the verb 'describes'.

(A) “describing” - This is incorrect because it is a gerund (verb acting as a noun) or participle (verb acting as an adjective), not a simple verb that can agree with the subject 'regulations'.
(B) “is describing” - This choice uses the singular form of the verb 'to be' (is) with the present participle 'describing'. However, 'is' contradicts the plural subject 'regulations'. Hence, 'are describing' would have been correct.
(C) “describes” - This is the singular form of the verb 'describe', which does not align with the plural subject 'regulations'. Hence, this choice is incorrect.

The correct answer is (D) were emailed.

According to the subject-verb agreement rule, the verb in a sentence should agree in number with the subject. In this sentence, the subject is 'Details' which is a plural noun. so, the verb must also be plural. 'Were emailed' is the plural past tense form of the verb 'to email,' so it matches the plural subject 'Details,' making (D) the correct answer.

(A) “e-mail” is incorrect because it is a singular noun, not a verb. The sentence requires a plural verb to agree with the plural subject 'Details.'
(B) “e-mails” is also incorrect because it is a plural noun, not a verb. While it matches 'Details' in number, it cannot function as a verb in this sentence.
(C) “was emailed” is incorrect because 'was emailed' is the singular past tense form of the verb 'to email.' It does not agree in number with the plural subject 'Details'.

The correct answer is (D) is working on.

In the sentence, "The lawyer, along with his legal assistants, _____ a special report for the hearing," the subject is "The lawyer." The phrase "along with his legal assistants" is a prepositional phrase—it gives additional information about the subject but does not change the fact that the subject is singular. so, the verb must be singular to agree with the singular subject, and "is working on" is the correct singular form.

(A) "are working on" is incorrect because "are" is the plural form of the verb. This would be correct if the subject were plural, like "The lawyers."
(B) "working on" is incorrect because it's not a verb form that can follow the subject directly. In English, the subject must be followed by a conjugated verb, and "working on" is not one.
(C) "have been working on" is incorrect because it's the plural form. It would be correct if the subject were plural, but in this case, the subject "The lawyer" is singular. Also, it suggests a continuous action in the past up to the present, which is not what the sentence is saying. The sentence is talking about a current, ongoing action.

The correct answer is (D) knows.

In sentences using 'either/or' or 'neither/nor', the verb should agree with the subject nearer to it. In this case, 'the receptionist' is nearer to the verb and is a singular subject, so the verb should also be singular. Hence, 'knows' is the correct choice.

(A) 'know' is incorrect because it is the plural form of the verb and does not agree with the singular subject 'the receptionist'.

(B) 'is known' is incorrect as it changes the meaning of the sentence, suggesting that the receptionist or secretary are known or recognized by someone else.

(C) 'are known' is also incorrect because it not only changes the meaning of the sentence like in option (B), but 'are' is also plural and does not agree with the singular subject 'the receptionist'.

The correct answer is (A) needs.

The subject of the sentence is "every employee," which is a singular noun. In English, a singular subject needs a singular verb to maintain subject-verb agreement. The verb "needs" in option (A) is singular, and so, it fits with the singular subject "every employee".

(B) "need" is incorrect because it is the plural form of the verb and does not agree with the singular subject "every employee".
(C) "have needed" is also incorrect. "Have needed" is the past perfect tense of the verb "need". This tense is used to describe an action that happened before another past action. In this sentence, there's no additional past action mentioned, making this choice incorrect.
(D) "to need" is incorrect because it is an infinitive form of the verb. Infinitives are typically used with another verb ("he appears to need help"), as a noun ("to err is human"), or as an adjective or adverb ("this is the product to buy"). In this sentence, it doesn't fit any of these roles, making it an incorrect choice.

The correct answer is (B) is expected.

The subject of this sentence is "the number of workers", which is singular, so it requires a singular verb to maintain subject-verb agreement. Thus, "is expected" is the appropriate choice.

(A) "are expected" is incorrect because "are" is a plural verb, which doesn't agree with the singular subject "the number".
(C) "are expecting" is incorrect for the same reason as (A). "Are" is a plural verb, which doesn't match with the singular subject "the number". also, "expecting" implies that the workers themselves are expecting something, which changes the meaning of the sentence.
(D) "expect" is incorrect because it is a base form of the verb, which is not grammatically correct in this context. It would require a subject like "they" or "we" to function properly, but the subject here is "the number".

The correct answer is (A) have decided.

The subject of the sentence is "a number of employees." Here, "a number of" is a quantifier expressing an unspecified quantity, followed by a plural noun "employees." When using "a number of" with a plural noun, the verb is also in the plural form. so, "have decided" is the correct option to use as "have" is the plural form of the verb.

(B) "has decided" is incorrect because "has" is a singular verb form, but the subject in the sentence is plural ("a number of employees"). so, there's a disagreement between the subject and the verb.
(C) "are decided" is incorrect because it suggests that the decision was made by someone else, not the employees themselves. In this context, it's clear that the employees made the decision to carpool, so a passive form is inappropriate.
(D) "is decided" is incorrect for the same reason as (C). The passive form is not appropriate in this context. also, "is" is a singular verb form and doesn't match with the plural subject "a number of employees."

The correct answer is (C) was stored.

The subject of this sentence is 'a large amount of poisoned water', which is considered as a singular subject. In English, a singular subject must be followed by a singular verb. Here, 'was stored' is a singular verb in the past tense, which agrees with the subject. so, (C) is the correct choice.

(A) 'were stored' is incorrect because 'were' is a plural verb. According to the subject-verb agreement rule, a singular subject such as 'a large amount of poisoned water' must be followed by a singular verb, not a plural one.
(B) 'store' is incorrect because it is a present tense verb. This sentence is clearly referring to a past event, as indicated by the past tense verb 'stored' in the other answer choices.
(D) 'stored' is incorrect because it lacks the auxiliary verb 'was' that is needed to form the past tense passive voice. In English, the past tense passive voice is formed by 'was/were' + past participle. so, 'stored' alone cannot function as a verb in this sentence.

The correct answer is (A) needs.

The subject of the sentence is "every employee," which is a singular noun. In English, a singular subject needs a singular verb to maintain subject-verb agreement. The verb "needs" in option (A) is singular, and therefore, it fits with the singular subject "every employee".

(B) "need" is incorrect because it is the plural form of the verb and does not agree with the singular subject "every employee".

(C) "have needed" is also incorrect. "Have needed" is the past perfect tense of the verb "need". This tense is used to describe an action that happened before another past action. In this sentence, there's no additional past action mentioned, making this choice incorrect.

(D) "to need" is incorrect because it is an infinitive form of the verb. Infinitives are typically used with another verb ("he appears to need help"), as a noun ("to err is human"), or as an adjective or adverb ("this is the product to buy"). In this sentence, it doesn't fit any of these roles, making it an incorrect choice. 

The correct answer is (B) is expected.

The subject of this sentence is "the number of workers", which is singular, so it requires a singular verb to maintain subject-verb agreement. Thus, "is expected" is the appropriate choice.

(A) "are expected" is incorrect because "are" is a plural verb, which doesn't agree with the singular subject "the number".

(C) "are expecting" is incorrect for the same reason as (A). "Are" is a plural verb, which doesn't match with the singular subject "the number". Moreover, "expecting" implies that the workers themselves are expecting something, which changes the meaning of the sentence.

(D) "expect" is incorrect because it is a base form of the verb, which is not grammatically correct in this context. It would require a subject like "they" or "we" to function properly, but the subject here is "the number". 

The correct answer is (A) have decided.

The subject of the sentence is "a number of employees." Here, "a number of" is a quantifier expressing an unspecified quantity, followed by a plural noun "employees." When using "a number of" with a plural noun, the verb is also in the plural form. Therefore, "have decided" is the correct option to use as "have" is the plural form of the verb.

(B) "has decided" is incorrect because "has" is a singular verb form, but the subject in the sentence is plural ("a number of employees"). Therefore, there's a disagreement between the subject and the verb.

(C) "are decided" is incorrect because it suggests that the decision was made by someone else, not the employees themselves. In this context, it's clear that the employees made the decision to carpool, so a passive form is inappropriate.

(D) "is decided" is incorrect for the same reason as (C). The passive form is not appropriate in this context. Furthermore, "is" is a singular verb form and doesn't match with the plural subject "a number of employees." 

The correct answer is (C) was stored.

The subject of this sentence is 'a large amount of poisoned water', which is considered as a singular subject. In English, a singular subject must be followed by a singular verb. Here, 'was stored' is a singular verb in the past tense, which agrees with the subject. Therefore, (C) is the correct choice.

(A) 'were stored' is incorrect because 'were' is a plural verb. According to the subject-verb agreement rule, a singular subject such as 'a large amount of poisoned water' must be followed by a singular verb, not a plural one.

(B) 'store' is incorrect because it is a present tense verb. This sentence is clearly referring to a past event, as indicated by the past tense verb 'stored' in the other answer choices.

(D) 'stored' is incorrect because it lacks the auxiliary verb 'was' that is needed to form the past tense passive voice. In English, the past tense passive voice is formed by 'was/were' + past participle. Therefore, 'stored' alone cannot function as a verb in this sentence.