Modal verbs test

Tomorrow is your sister's birthday. ... I give her a present?

I don't ... to be there till 3.

Jane's brother had an accident. We simply ... send her a telegram.

You ... ask questions like that. I forbid you.

I'm sorry I'm late. Did you ... wait long?

You ... to visit your brother in hospital. I think it's your duty.

— Ann is my sister. — I ... have guessed.

She ... to drink her tea without sugar.

I am sorry, I ... have said that.

She ... know nothing about your affairs. It will upset her.