What is the subject of the following sentence?

Groups of students are visiting our office today.

Question

What is the subject of the following sentence?

Groups of students are visiting our office today.

BlackTom AI · Accepted Answer

To identify the subject of the sentence, we look for the noun or pronoun that performs the action of the verb or is described by the predicate. The sentence given is: 'Groups of students are visiting our office today.'
Option 1: 'office' — This is a noun, but it functions as the object of the action (the place being visited), not the one performing the action. Therefore, it cannot be the subject.
Option 2: 'Groups' — This noun is plural and precedes the phrase 'of students,' acting as the main noun that controls the agreeing verb 'are visiting.' Since the subject is what the verb 'are visiting' is about, 'Groups' is the correct subject of the sentence.
Option 3: 'students' — While 'students' is part of the prepositional phrase 'of students' modifying 'Groups,' it does not stand as the syntactic subject of the sentence. The action is performed by the whole group, not just the students individually as the head subject.
Option 4: 'visiting' — This is a participle form of the verb, functioning as part of the verbal phrase 'are visiting.' It is not a noun and cannot serve as the subject.
In summary, the subject is the head noun of the subject noun phrase 'Groups of students,' which is 'Groups' itself, since it agrees with the plural verb 'are visiting.'

What is the subject of the following sentence? Groups of students are visiting our office today.单项选择题

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