21. She had __________ accident, but luckily, she wasn't hurt in _______ event at all.

A. a, a　　　　 B. an, an　　　　 C. an, the　　　　 D. the, an

　　 假如你是Sigmund，Nick有些问题使他烦恼,他给你发了一个电子邮件，请根据其内容，给予回复。邮件的开头及结尾已给出(不计入总词数)。

要求：

1.　　 词数80左右。

2.　　 条理清楚，语意连贯，句式规范，字迹工整。

　 Dear Nick,

75. Camp in the open air is the most interesting of all the outdoor activities. 　　　　　　 ___

D)　　 从下面方框中选择适当的词组填入对话中。

　　　　 ( A student asks his teacher for advice. )

S: How can I improve my English? I don’t think I speak it 　　76　 .

T: There are a few ways. Do you want to 　　77　 　on speaking?

S: Yes. I want to speak with foreigners.

T: All right. An important thing is to 　　78　 . Do you or your parents know any foreigners?

S: No.

T: Then you can try the Internet. There are 　　79　 　ways to practice: chatrooms, e-mails, and so on.

S: But a lot of those are writing.

T: True, but it is not formal writing, so you can see how people really speak. Also, in some chatrooms, you can talk to people. Does your computer have a microphone?

S: Yes, it does. That’s a good ____80___ .Thanks!

74. The principal isn’t in at the moment. He has been to an important meeting. 　　　　 ____

73. The story was very frightening that all of them screamed.　　　　　　 　　　　　 ___

72. It’s too hot. Why not stay at home and watch TV instead of play football.　　　　　 ___

71. Look! The shoes on the shelf are so pretty. Let me try on them. 　　 　　　　　　　　 _

70.(动词-名词) The fans gathered around the ____________ in order to get their signatures.　 ( win )

C) 下列各句的A、B、C、D中有一处错误，在不改变句子意思的前提下，将正确答案写在题后的横线上。

69.(过去分词) Don’t drink the ____________ water. It will make you ill. 　　( pollute )