MODAL VERBS (CAN/MUST/WOULD...)

"What time will you be home tonight?"

"I'm not sure. I _____ late."

• may be

• might be

• can be

I can't find the theatre tickets. They _____ out of my pocket.

• must have fallen

• should have fallen

• had to fall

Somebody ran in front of the car as I was driving. Fortunately I _____ just in time.

• could stop

• could have stopped

• managed to stop

We've got plenty of time. We _____ yet.

• mustn't leave

• needn't leave

• don't need to leave

I _____ out but I didn't feel like it, so I stayed at home.

• could go

• could have gone

• must have gone

I'm sorry I _____ come to your party last week.

• couldn't come

• couldn't have come

• wasn't able to come

"What do you think of my theory?"

"I'm not sure. You _____ right."

• could be

• must be

• might be

I couldn't wait for you any longer. I _____, and so I went.

• must go

• must have gone

• had to go

"Do you know where Liz is?"

"No, I suppose she _____ shopping."

• should have gone

• may have gone

• could have gone

At first they didn't believe me when I told them what had happened, but in the end I _____ them that I was telling the truth.

• was able to convince

• managed to convince

• could convince