Fortunately, the hospital's new air-conditioning system ________ when the first ...

[ Grammar ]

Fortunately, the hospital’s new air-conditioning system ________ when the first heat wave of the summer arrived.

A. had installed

B. installed

C. had been installed

D. had been installing

Select your answer:
A B C D E

Other quiz:

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I want to go to Paris for my honeymoon, but she ___.
a. don’t
b. doesn’t
c. didn’t

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I want to be __________________ woman in the world.

A. the most beautiful

B. the beautiful

C. beautiful

D. more beautiful