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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。
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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
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Dear Charlie,
I have just come back from my vacation．This summer I ________(stay, not)at home．Instead, I ________(go)back to my home village near Harbin to see my grandparents．They ________(tell)me that their life ________(change)a lot since 1984．In 1989, they ________(buy)a truck to help sell milk and their cows to town．My uncles ________(help)them to catch fish in a lake not far from their house．They(live)a happy life now．
Next week the new term ________(begin)and I ________(be)busy again．
Xiao Jun
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。
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1. Father asked if a new cinema (build) the next year.
2. these magazines (can, take) out of the reading room?
3. Food (must, keep) in a cool place in summer.
4. I was told that the problem (discuss) then.
5. The doctor said that his mother (have to, operate) on at once.
6. The thief went into the room without (notice).
7. The teacher told the students that they (expect) to be useful to the country.
8. He (catch) in a shower last night and got wet through.
9. The thief (happen to, notice) when he was stealing a wallet from a woman.
10. The students here (keep) busy doing all kinds of exercises every day in the past few weeks.
11. —What happened to the postman?
—I don't know. He (not, see) around here for a long time.
12. I don’t know what decisions (make) at the conference as John hasn’t reported to me yet.
13. All the preparations for the task (complete), and we are ready to start.
14. The new dictionaries are very useful. They (sell) well and_________ (sell out) already.
15. I need one more stamp before my collection (complete).
16. Cleaning women in big cities usually get (pay) by the hour.
17. Your pronunciation should (pay) full attention to, or you will not make great progress.
18. —Why does he look so unhappy? —He (laugh) at by his classmates.
19. Don’t get off the bus until it (stop).
20. Please go away. I want (leave) alone.
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