In case you ______ still have anything to offer, please contact our manager while he is available．

“No student,” the headteacher stressed, “_______ go out of the school after ten o’clock at night without my permission.”

— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It’s just seven o’clock. It’s too early.

I was really anxious about you. You______ home without a word.

— Who is absent from the lecture today? —_____________you ask? Peter, of course.