30. The book Qimin Yaoshu ______ advice on how to keep cows and sheep.

A. makes　　　 B. takes　　　 C. contains　　　 D. includes

29. --- Will you go boating with us this summer vacation?

　 --- It ______.

A. is all depended on　　　　 B. all depends

C. is all depended　　　　　 D. all depends on

28. Is ______ necessary to complete the article before National Day?

A. as　　　 B. that　　　 C. it　　　 D. he

27. --- Lucy isn’t coming tonight.

　 --- Bus he ________!

A. promises　　 B. promised　　 C. will promise　　 D. had promised

26. His name is James B Clark. What does _________?

A. B stand for　　　　 B. the B stand with

C. B stands with　　　 D. the B play for

25. His speech ______ some new points.

A. gave in　　 B. brought in　　 C. made in　　 D. took in

24. The vaccine (疫苗) was used to _______ the whole population _______

bird flu (禽流感).

　　 A. keep; out of　 B. protect; from　 C. keep; away　　 D. make; out of

23. His letter was so confusing that I could hardly make any ______ of it.

A. explanation　　 B. meaning　　 C. sense　　 D. guess

22. ______ that Taiwan is the largest island in China.

A. As is known　　　 B. As we known

C. It is well known　 D. When is known

21. It was in the lab ______ was taken charge of by Professor Black _______

　they did the experiment.

A. that; where　 B. which; that　　 C. whom; that　　 D. which; where