28．A

27．A　 when they were young表明，“他们是朋友”一事发生在豆I know之前，故应使用完成不定式。因know后的词语是them，所以空白处用谓语形式C或D都是错误的，本题答案是A。

26．B　 一日三餐的名词前一般不加冠词，指抽象事物，指具体的食物时，可有定冠词。

25．C　 no matter和B、C混用是错的。what，不能修饰副词，故用how，no matter how=however.

24．A 　to death，to指结果，还有：hang to death，sentence to death，freeze to death等。

23．A　 during可接抽象名词，stay便是这样的名词。

22．D　 她是在受到警告之后，才不敢一个人回家的，故应选用完成被动式的分词，句中with结构中的分词要用表主动的现在分词，故答案是D。

21．B　 对一些人来说，生活是乐趣，但对另外一些人来说生活是痛苦。“另外一些人”是泛指复数。

16．A　　　　　　　　 17．B　　　　　　　　　 18．A　　　　　　 19．B　　　　　　 20．C

Text1　 M: Can you recognize that woman, Mary?

W: I think I can, John. It must be Karen Marsh, the actress.

Text2　 W: Oh, you are here, John. I thought you went swimming with the others.

M: I changed my mind at the last minute.

Text3　 W : Can you show me how to do the new set of exercises?

M: Of course. Let's start with the first one.

Text4　 M: Why does Dick look so surprised?

W: He didn't expect to see his neighbour here.

Text5　 W: What time does the library open?

M: At eight in the morning. And it closed at six in the afternoon.

Text6　 M: When are you leaving, Susan?

W: I'm off on Sunday.

M: I'd like to invite you to dinner before you go. What about Thursday?

W: I'm free on Thursday. I'd love to come.

M: I wanted to ask John, too, but he's away.

W: What a shame! Never mind, I'll write to him.

Text7　 M: When did you say the plane would arrive?

W: At a quarter past two, very shortly in fact.

M: Do you think you'll recognize Carl when you see him?

W: I don't know. I haven't seen him since he was 16．Time flies. Now 9 years have passed.

Text8　 W: Hi! Where did you go over this weekend?

M: We have two days for our weekend now. On Saturday we went to my uncle's farm. We went to get some trees for the back yard. And the next day we planted them.

W: Why didn't you buy them in the town?

M: Well, they cost a lot of money here. And it is hard to find some of them here, for example, cedar tree.

W: Did you get anything else?

M: Yes, they have lost of apples now. They gave us two big baskets.

W: What did you do with them?

M: My mother cooked some of them. We gave some of them to our friends.</PGN008．TXT/PGN>

Text 9　 M: Excuse me, may I see the suit?

W: Yes, sir.

M: What is it made of?

W:It is made of nylon.

M: How much is it?

W:120 yuan.

M: Here you are.

W:Thank you.Here is your change,80 yuan.

M: By the way, where is the shoe department?

W:On the first floor.

M:Thank you.

Text10　

Here is what happened to Adrian Fox one day:

Adrian Fox lives in Devon and he is travelling home from London by train. He decides to have a cup of tea, an attractive girl comes and sits at the same table.They begin talking and the girl tells Adrian she is going to Devon on holiday.

They are soon very friendly. Adrian finds out that the girl hasn't yet found a hotel to stay in. Adrian's mother has a spare room in her house and Adrian invites the girl to stay there.He knows his mother won't mind.The girl accepts.

A few minutes later a man and sits beside the girl. He is her husband. Adrian didn't know the girl was married, and he is a little angry. His mother won't like to have two people staying in her house. Then three children arrive. Two of them are carrying cats, and one has a small dog. They are the girl's children. The girl says, they are all very happy to be staying in Adran's house. But Adrian isn't so happy.

11．C　　　　　　　　 12．C　　　　　　　　　 13．A　　　　　　 14．C　　　　　　 15．B