Past Modals of deduction B2

I'm sure he didn't do it = ?

• He can't have done it.

• He can't do it.

• He must have done it.

• He might have done it.

I'm sure he did it = ?

• He must have done it.

• He can't have done it.

• He must do it.

• He should have done it.

Maybe he did it = ? All possible answers.

• He may have done it.

• He might have done it.

• He could have done it.

• He can't have done it.

I had to wait 45 minutes for a bus yesterday! There ................................ been a road accident or else. No idea.

• might have

• can have

• must have

I left my bicycle in front of the library and it disappeared! Someone ................................ stolen it.

• might have

• can't have

• must have

• must not have

He ................................ bought a new car. He doesn't have any money!

• can't have

• may have

• must have

• might have

He __ committed the crime, as he had both the motive and the opportunity.

• can have

• must not have

• may not have

• could have

Lucy __ attended the concert, but we aren't sure. Jason thinks he saw her.

• couldn't have

• must have

• may have

• might not have

You __ finished that book already! You only started reading it twenty minutes ago.

• might not have

• could have

• may not have

• can't have

I'm sure the dog played in the mud.

• The dog must have played in the mud.

• The dog must played in the mud.

• The dog may have played in the mud.

• The dog can't have played in the mud.