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:

If Conditional › View

If he _________, I __________ surprised.

A. (come) , (‘ll)

B. (come) , (‘ll be)

C. (comes) , (‘ll be)

Grammar › View

which word is wrong in ‘I have decided a few days ago.

A. have

B. a

C. few

D. ago

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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