What? You tripped over a chair at the party and ...

★ Passive Modals

What? You tripped over a chair at the party and dropped your plate of food into a woman’s lap? You —- (embarrass)!

A. must have been embarrassed

B. must been embarrassed

C. must have embarrased

D. have embarrassed

Preview next quiz:

People —- (not explain) some UFO sightings easily. No one is able to explain them easily.

A. cannot be explained

B. cannot explain

C. cannot been explained

D. cannot explained