Perfect modals

Nancy did very well on her history test. She _____ studied hard.

• might have

• should have

• must have

• could have

We couldn't hear our teacher all day. He _____ spoken louder.

• should have

• must have

• may have

• would have

It was a good movie. You _____ seen it.

• could have

• might have

• would have

• must have

I'm not sure. I _____ left my keys at home.

• should have

• would have

• must have

• might have

Be careful. That floor is wet. You _____ slipped.

• should have

• must have

• couldn't have

• could have

The ground is very wet this morning. It _____ rained last night.

• couldn't have

• must have

• should have

• would have

Andrew hurt his hand while he was fixing his sink. He _____ been more careful.

• must have

• should have

• would not have

• could not have

Did Marvin's cat die? He _____ felt really sad.

• could have

• should have

• might have

• must have

Those cool musicians play beautifully together. They _____ practiced a lot.

• could have

• must have

• shouldn't have

• would have

I called the Stevensons, but no one answered. They _____ gone to the country.

• can have

• must have

• would have

• should have