They _______ have finished the project so quickly; it was ...

[ Past Modals ]

They _______ have finished the project so quickly; it was very complicated.

A. can’t

B. can’t have

C. must

D. should

Select your answer:
A B C D E

Other quiz:

Wh- Questions › View

-Assistant:____________do you live?

-Marge: I live with my family in Springfield

A. When

B. Who

C. Where

D. How

Grammar › View

Find the subject. James was the guitarist for a jazz band.

A. James

B. was the guitarist

C. for the jazz band