李雷不知道该如何提高自己的英语听力水平，于是他在校园BBS上留言求助，有四位同学跟帖回答了他的问题。

LiLei: Hi, everyboby. I’m Jimmy. I like English very much, but I really need some advice on listening . Who can help me?

Jenny:  Don’t get nervous before you start to listen to something. You need to relax. This will help.

Dr.Smith:The first sentence tells a lot the whole passage.for example,if, at the beginning , you hear “Welcome back BBC news---”, you know you will hear a piece of news, not a children’s story, or a science report.

Shirley: When you’re listening, try to do some thinking. For example, you can think of the following questions: What happened? When, Where and how? What was the result (结果)and what did the speaker want to tell us? In this way, you may understand the passage better.

Josh:  It’s important for you to remember some important facts. for example, if the passage is a science report , you should try to remember its results and how the scientists got them.

请根据以上内容完成下面任务：以下A-D是针对上述解答内容的提炼，请将它们分别与对应的解答人配对：

A.listen to important facts.        B.listen carefully to the first sentence.

C.Relax yourself.               D.Think when you’re listening.

1.Jenny:       

2.Dr.Smith:          

3.Shirley:           

4.Josh:                

请您也为李雷提供一条提高英语听力水平的建议（一句话）：

5.                                                           

Dear Dad,
I’m writing to you because it’s not easy to talk about it. I still   1  clearly how my uncle died two years ago. In fact, I seriously want to ask you to stop smoking. I’ve looked up a lot of information about smoking and I found out something   2 . You know that smoking is bad for your  3  and can cause cancer. I’ve learnt that it causes many other   4  too. Do you know that over ten thousand people die from smoking every year in Britain?
When mum asks you to smoke   5 , you think she’s angry. Well, it’s true that she doesn’t like the   6  of smoke in the house. When you smoke, it’s also   7  for mum and me. In other words, when we   8  in your smoke, it’s like we’re smoking ourselves.   9 , we can also get disease. Doctors are finding that more and more   10  are falling ill because of the others’ smoking.
I know that it’s very   11  to stop smoking, but you must give it up. Please see the doctor and ask him   12  help. We will do anything we can to help you. You must try to   13  your own life. We don’t want to  14  you because you are so important to us.  15  you, who can help me with my maths homework or mend my bike? Please don’t smoke!
Your daughter,
Meimei

—Can you tell me ________ to send this postcard to New York by airmail?

—Let me check. Oh，it’s one dollar.

A. how long it takes                B. how much it costs

C. who can help me            D. if there’s a post office