When we speak to people, we should be ___________ .
—I think students should be allowed to have mobile phones to call their parents.—_______! They may play games in class.
—Excuse me, could you tell me where _______? —Sure, sir. You can try www.taobao.com.
—Jack, could you help me my pet when I’m away?—Sure, it’s my pleasure.
—Miss Li, are we going to have a picnic tomorrow?—Yes. But if it ______, we’ll do some reading instead.
— “Frog”, Mo Yan's latest novel(小说), please! — Sorry, it ________ just now. But it will come out again soon.