25.　 Recently I bought an ancient Chinese vase, ______ was very reasonable.

　　 A. which price　　 B. the price of which　　 C. its price　 D. the price of whose

24.　 The police investigated those _______ about the accident.

　　 A. stander-by　　 B. standers-by　　 C. stander-bys　　 D. standers-bys

23.　 _______ such heavy pollution already, it may now be too late to clean up the river.

　　 A. Having suffered　　　 B. Suffering　　　 C. To suffer　　 D. Suffered

22.　 --- Where is my book? It was there a moment ago.

　　 --- Someone _______ it by mistake.

　　 A. could have taken　　　 B. must take

　　 C. might take　　　　　 D. must have taken

21. It’s half past six, but he hasn’t ________ yet.

A. turned out　　　 B. turned over　　 C. turned up　　　 D. taken up

One possible version

Recently the students in our class had a discussion about whether our parents should accompany us studying at school.

　　 We do have different opinions on this matter. Most of us (about 70%)think our parents should not accompany us studying at school since it make us fall into the habit of dependence, so that we won’t form the good habit of studying. What’s more, it is harmful for us to form the habit of controlling ourselves. At the same time it affects our parents’ work, studies and rest.　

While about 30%of my classmates think it necessary for our parents to accompany us studying at school. Accompanying us studying at school can let us have more time to spare for our studies. Besides, we shall be more healthy for their cooking. On the other hand our parents can help us set up our aim, urge us to finish our task, encourage us to overcome difficulties and get us into the good habit of studying..

In my opinion,……

66-75

smiling　　　 natural　　　　 valuable　　　 expensive　　　 apologize

distance　　　 secret　　　　　 description　　 published　　　 failure

1. photo-photos　 2　 正确　　　 3 one---some 4 choosing-chosen　 5 去掉　 the

　6 had--- have　 7 meet 前加　 will　 8 many---much 9 去掉　 more 10 such----so

36-40 BDABC　　　 　 41-45 DADAC　 　46-50 DBCBC　　 　51-55 ADBAC

36-40 DCBAD　　 41-45 CBADC　 46-50 BADCB　 51-55 ADCBA