Modal verbs

What he saw in that room ... frightened him terribly.

You ... have told us that half an hour ago.

He was not old, he ... more than forty.

The secretary ... have failed to get in touch with him.

You ... have seen her dance.

... he have done the work carelessly?

... you have mistaken the road?

... Mary have changed her mind?

Oh, Jane, think how she ... have been suffering!

The girl ... have been upset by his words.

She ...felt that something was wrong.

She ... mentioned it in his presence.

They ... have done it without his brother's consent.

Tom ... argued with the teacher yesterday.

She ... have appeared at the theatre if we agreed to meet there.

She ... be more careful.

He ... be apologizing; it was possible.

I wish I ... see him.

I wish I ... really talk to my mother.

She probably shouldn't have gone out with Brenda, but she ... stay in the house either.