We were planting trees ________ our friends were collecting rubbish. ...

[ Complex Sentences with Adverb Clauses ]

We were planting trees ________ our friends were collecting rubbish.

A. after

B. as soon as

C. when

D. while

Select your answer:

Other quiz:

Vocabulary and Grammar › View

Sorry, I can’t hear you. Can you _________?

A. top up

B. put on

C. speak up

D. hang up

Grammar › View

I (read)___________ the book you lent me, but I (not/ finish)_________ it yet. It’s very interesting.

A. have read/haven’t finished

B. have been reading/haven’t finished

C. have been reading/haven’t been finishing

D. have read/haven’t been finishing