4 . ______ made him satisfied was that his students were able to read, speak and write in English, and they became more confident in learning.（用适当的词填空）

5 . Gun control is a subject________ Americans have argued for a long time.

A．of which

B．with which

C．into which

D．about which

6 . 你可以跟朋友一起去，即使你没收到邀请。
You can go with a friend ________ ________you don't receive an invitation.

7 . Jack was working in the lab ________ the power cut occurred. (用适当的词填空)

8 . 假定英语课上老师要求同桌之间交换修改句子，请你修改你同桌写的以下句子。句中 共有10.处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加： 在缺词处加一个漏词符号(∧)，并在其下面写出该加的词。
删除： 把多余的词用斜线(\)划掉。
修改：在错的词下面划一横线，并在该词下面写出修改后的词。
注意： 1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。
1. They sailed to a place where is believed to be Canada's coast.
2. They are of high intelligent and can communicate with people.
3. Our porters carry your luggage, so they can simply enjoy the view.
4. The plane flew ten times as higher as the kite.
5. If the cash run out, your shopping time is over.
6. A large quantity money has been raised to help the old.
7. In the new factory all the equipments will be up to date.
8. To my surprise, they had not finished the work yet.
9. We have ordered two more computers in an addition to ten TV sets.
10. Occupied in carrying out an experiment, he can't spare time to looking after his son.