The engineers _________ (invent) a new system for transporting water ...

[ Narrative Tenses ]

The engineers _________ (invent) a new system for transporting water last year.

A. invented

B. was inventing

C. had invent

Select your answer:
A B C D E

Other quiz:

Comparative and Superlative Adjective › View

Who is____ singer in your country ?

A. most famous

B. more famous

C. the most famous

Conjunction › View

______ a piece of cake___bananas are in the fridge.

A. both

B. and

C. neither, nor

D. either, or

Phrasal Verbs › View

It means to start doing an activity, hobby, etc…

A. start up

B. look up

C. give up

Grammar › View

My students __________ a new chapter in The Green Meadows next week.

A. reading

B. were reading

C. will be reading

D. is reading