(2013·银川高三一模)—Where is the post office?—It's just over there, at the end of the street. You ________    not miss it.

— Can I go to the movie, Mum?— Certainly. But you _______ be back by ten o’clock.

--Whose T-shirt is this? --It       be John’s. It’s much too small for him.

 --My computer ____start, no matter how hard I try.--It might have crashed.

Today is Wednesday. He _______ be at home. He _____ be at school.