Modal verbs

They ... know the writer's biography.

You ... have given them a chance.

You are so careless. You ... have broken the vase.

She took pains to learn all the rules. She ... no mistakes this time.

The film ... have been warth seeing.

Mother ... have been out shopping.

He ... a lot aloud, his pronunciation is rather good.

She ... been studying hard.

They ... found out the real reason for his silence.

She ... affected by his words.

He ... denied the truth of what they said.

No one ... spoken to him.

The story ... have never been published.

He ... have misunderstood me.

Nobody ... noticed that he was not used to speaking in public.

The telegram ... never reached them.