1 . It is high time that we should take ____________to keep the air from being polluted.

A．measure

B．measures

C．measured

D．measuring

2 . All the          to the airport were blocked by the police yesterday.

A．approach

B．approachs

C．approaches

D．approaching

3 . His sudden ________(depart) threw the office into chaos. (所给词的适当形式填空)

4 . The old man is said to have gone through varieties of________(suffer) during the war. （所给词的适当形式填空）

5 . It has been pointed out that what plays a vital role in driving away one’s________(anxious) is one’s sweet childhood memories. （所给词的适当形式填空）

6 . Going from junior high school to senior high school is a really big ________ (挑战) . （根据汉语提示单词拼写）

7 . 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1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. He thinks that important to laugh from time to time.
2. She has waiting for you here since class was over.
3. She later wrote warm of her friend’s delightful words and behavior.
4. The media has a great influence for our life.
5. You'd better have your voice record when you practice a speech.
6. Our understanding of the world is constantly growing and change.
7. We use to live in a small town but last year we moved to a big city.
8. Although it has neither cute characters or wonderful songs, it is amazing.
9. I agree to that I need to pay more attention to my problem.
10. Advertisers try to combine the product with a concept of happiness and free.

8 . The police believe Derek gave a fairly accurate_________(accountant)of what happened. (所给词的适当形式填空)

9 . There was a general _______(expect) that he would win. (所给词的适当形式填空)

10 . To handle this problem, I would like to propose seven practical _____________ (recommend) as follows. (所给词的适当形式填空)