He ….. gone to Russia. He doesn't have a passport.
Can’t have
Tom and Jack are so selfish - they ….. been there for you!
Should have
You ….. seen her. She was standing next to you.
Must have
I explained it to her but she … misunderstood - my Japanese isn't very good.
Might have
We'll ask at the reception desk. Someone ….. handed the keys in.
Must have
I don't know why there weren't any buses yesterday. There ..… been a strike, but I'm really not sure.
Could have
A: James was at the party last night. B: He been. He's in Mexico.
Can’t have
8) I ….. let you know what was happening but I forgot.
Should have
There was so much traffic. There ….. been an accident.
Must have
I saw his car in front of the building. He ….. been here.
Must have
