I wonder why our neighbours decided to move. They___________________________ ...

★ Modal and Modal Perfect

I wonder why our neighbours decided to move. They___________________________

A. can’t have bought a new house.

B. must have bought a new house.

C. might have bought a new house

D. have bought a new house.

Preview next quiz:

I__________________ medicine. But actually I chose chemistry.

A. could have studied

B. should have studied

C. could study