Grammar Quiz
[ Tenses ]

They __________ this research for years.

A. have done

B. have been doing

C. were doing

Select your answer:
A  B  C  D  E 


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Other quiz:

Tenses › View

By the time you arrive, she … (complete) the training.

A. completes

B. is completing

C. will have completed

D. will be completing

Vocabulary › View

Articles are placed before nouns, they, are, a, an, the.

A. Preposition

B. Article

C. Verb

D. Conjunction

IF CLAUSE › View

If you get back late, I………………. angry.

A. be

B. will be

C. will am

D. is

Tenses › View

What is the structure of the present continuous tense?

A. Subject + will be + verb-ing

B. Subject + have/has + verb-ed

C. Subject + was/were + verb-ing

D. Subject + am/is/are + verb-ing

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