4 . He didn’t make any comments on the reason ________he couldn’t carry on the conversation.

A．that

B．which

C．why

D．Where

7 . 请你修改以下的每个句子，每句有1处语言错误，错误涉及一个单词的增加或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
修改：在错的词下面划一横线，并在横线下面写出修改后的词。
注意：每处错误及其修改仅限一词。
1. Not only I but also Jane and Mary am tired of having one examination after another.
2. My father knows clearly that smoking is bad for his health, but he just can't get rid it.
3. This area is bad off for doctors and nurses.
4. You may find it astonished that Charlie didn’t pass the final exam.
5. Seeing the funny monkey, all of us couldn’t help laughed.
6. As you know, the villagers here lead happy life.
7. I am a Senior 1 student, studied in No. 3 middle School now.
8. The match finally came to the life in the second half.
9. The young man focused his attention in the passage.
10. Taken exercise does good to your health.

8 . The writer and professor, who I often refer to at the meetings, ________ famous for those works.

A．is

B．are

C．had been

D．were

9 . ________ is no wonder that you can't clarify the key point-you've left out two words.

A．It

B．As

C．There

D．What