Exam unit 9 AE3

Someone must have forgotten to lock the door.

• Active voice

• passive voice

Your sweater might have been found after we left the restaurant.

• Active voice

• passive voice

The flight must have been cancelled.

• Active voice

• passive voice

Dinner at your aunt's house had to have been good.

• Active voice

• passive voice

Their ships could have been destroyed in a huge storm.

• Active voice

• passive voice

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

• should have

• would have

• must have

• might have

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

• couldn't have

• must have

• should have

• would have

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

• could have

• should have

• might have

• must have

John and Michael haven't arrived at the party yet. They___________have gotten lost.

• Should
• Must
• Shouldn't
• Mustn't

I'm tired. I definitely___________stayed up so late last night.

• shouldn't have
• couldn't
• may have
• could has