Modal verbs about the past

Lucy __________ attended the concert, but we're not sure.

• can't have

• may have

• should have

• must have

You ____________ finished that book already! You only started reading it an hour ago.

• can't have

• might have

• could have

• shouldn't have

Oh no! My phone isn't in my bag. I ____________ left it on the train.

• can have

• might have

• may have

• should have

She __________ been a lawyer but she decided to study accountancy instead.

• could have

• may have

• might have

• should have

I'm not sure if I passed the exam. I don't feel very sure that I passed.

I ______________ passed the exam.

• might not have

• should have

• could have

• can't have

She speaks excellent French. I'm sure she's lived in Paris for a long time.

She ____________ lived in Paris for a long time.

• could have

• must have

• can't have

• might have

Someone told me that Mark was in Mexico last week, but I saw him here so he ________________ been in Mexico.

• may have

• might have

• should have

• couldn't have

I am sure he was here. I saw his car in front of the building.

He _____________ been here.

• could have

• must have

• can't have

• couldn't have

Why were there no buses yesterday? Maybe it was the snow or they __________ been on strike.

• must have

• couldn't have

• might have

• can't have

He __________ gone to Russia. He didn't have a passport.

• might have

• should have

• couldn't have

• must have