—Mr. Smith, why are you always asking me to do the difficult work?—Because you _______ do such a thing and nobody else is fit for it.

—Happy birthday!— Thank you! It’s the best present I_________ for.

—We want someone to design the new art museum for us.—______ the young fellow have a try?

- Shall I tell Shirley the good news?-No, you________. I’ve told her already.

You_______ play with the knife. You ______ hurt yourself.