Listen! Someone is knocking at the door. Who _____it be—It_____ be Tom. He phoned to visit me this evening.

Do you like communicating with your friends on QQ or MSN—____. I’d rather ____ the mobile phone.

r some noise in the next room.—Oh, yes. Your sister_______ there.

I know, he is kind.

You should know the first thing you must do now is to do your homework.—Thanks for reminding me.