I saw the light coming out of his living-room window ...

★ Modals with Perfect Infinitive

I saw the light coming out of his living-room window last night. He ___ been reading or watching TV. I’m not sure.

A. must have

B. might have

C. should have

D. can have

Preview next quiz:

You ___ told Kate about the accident. I had already told her

A. can’t have

B. couldn’t have

C. must have

D. needn’t have