27. The doctors and the nurses did everything 　　　　the drowning boy but in vain .

A. that they could save 　　　　　　　　　　　 B. they could do to save

C. that they want to do to save 　　　　　 D. which they could do and save

26. 　　　　is known to us all , the 29^th Summer Olympics are to be held in Beijing in 2008 .

　　 A. As　　 B. As it　　 C. It　　 D. That

25. Bamboo is such a good plant 　　　　can be made into fine paper .

　　 A. that　　 B. which　　 C. what　　 D. as

24. Please put the dictionary 　　　　I can easily find it .

　　 A. in which　　 B. where　　 C. that　　 D. wherever

23. - Excuse me . Is there a supermarket around 　　　　we can buy some fruit ?

　　　　- Yes . Go down two blocks , turn right and you’ll find one .

　　 A. which　　 B. where　　 C. that　　 D. from which

22. I wonder whether this box is 　　　　he borrowed from us several days ago .

　　 A. that　　 B. which　　 C. what　　 D. the one

21. Is this the place 　　　　you visited the other day ?

　　 A. where　　 B. in which　　 C. that　　 D. the one

　One possible version:

　　　 Dear Mr. Principal,

I am a senior student of our school. I'd like to say something about the canteen service in our school.

In general, the service is satisfactory. The hall is clean and tidy. The dishes look inviting and taste delicious as well. What's more, the workers there treat us as their friends, which makes us feel very happy.

However, we feel the price of the meals is a little too high, Besides, we can only have a limited variety of dishes with little change every week. In addition, we often have to stand in line for a long time before we can get the meal. You could understand how precious time is to us students. Therefore, may I suggest something be done to solve the problems so that we can all enjoy our meals at school?

Thanks for your consideration.

Sincerely yours,

Li Hua