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.

We plan to have a special party _______ the evening of January 28th, 2011. [ ]

If you take this new type of train to Xi’an, it will _________ you only two hours to get there.

Linda, I don’t have that kind of books.— You can _________ some from the library.

You should look after,classmates.