Grammar and Structure Flashcards

Which sentence is in the past perfect tense?

Answer: By the time the exam started, she had reviewed all her notes.

Past perfect ('had + past participle') describes an action completed before another past action. 'Had reviewed' is the past perfect here.

Identify the sentence with correct subject-verb agreement.

Answer: The quality of the essays was impressive.

The subject is 'quality' (singular), not 'essays'. The verb must agree with 'quality', so the singular 'was' is correct.

Which sentence uses the gerund correctly as a subject?

Answer: Swimming regularly is beneficial for cardiovascular health.

A gerund (verb + -ing) can function as the subject of a sentence. 'Swimming' is the gerund subject here.

Choose the sentence with correctly placed adverbs.

Answer: She carefully proofreads every report before submitting it.

Manner adverbs like 'carefully' can appear before the main verb or at the end of the clause, but not between the verb and its direct object.

Which sentence correctly uses an infinitive of purpose?

Answer: She went to the library to study for her exams.

'To + base verb' (infinitive) is used to express purpose — why someone does something.

Identify the correctly punctuated sentence containing a non-restrictive clause.

Answer: Dr. Chen, who has taught linguistics for twenty years, wrote the textbook.

Non-restrictive relative clauses add extra information about a known noun and must be set off by commas on both sides.