With his attention________on the shops along the roadside，he knocked an old man down while riding to school.

A  concentrating     B．concentrated     C．to concentrate      D．concentrates

答案　B

解析　考查词组，故选B项。

9. I am in______charge of the class which was in ______ charge of my wife.

  A. 不填；the　　　　　　B. 不填；不填

　C. the; 不填　　　　　　D. the; the

选A。in charge of 的意思是“负责”、“管理”，其主语通常是人；in the charge of 的意思是“由……负责或管理”，其主语通常是物。

10. —Shall I sit at this end of the boat or the other end?

  —If you keep still, you can sit at______end.

  A. neither   B. each   C. either any

 I prefer a flat in Inverness to       in Perth , because I want to live near my Mom’s .

A. one     B. that         C. it       D. this

【详解】考查代词的用法。one表示泛指，相当于“a(an)+名词”，代替的是同类事物中的“一个”；that表示特指，相当于“the+名词”；it所代替的是前面提到过的同一事物；this表示近指。故选答案A。

1. —Have you moved into the new house?

—Not yet, the rooms　　　　　　   (paint).

2. A new school　　　　　　   (build)here now.

3. Water　　　　　　   (pollute)so quickly that there is no clear water.

4. I am sure that he must　　　　　　   (examine)at this time.

5. Jane　　　　　　   always　　　　　　   (praise)by her manager.