39. She is American, ____ she knows little about American history.
A. so B. yet C. and D. therefore
38. It’s really very dangerous. One more step, ____ the baby will fall into the well.
A. or B. so C. but D. and
37. He made another wonderful discovery, ____ of great importance to science.
A. which I think is B. which I think it is
C. which I think it D. I think is
36. The Oscar is one of the film prizes ____ offered to any Chinese actor or actress so far.
A. which is not B. that have not been
C. that has not D. that has not been
35. She won the first prize in the speech contest and ____ surprised us.
A. which B. it C. as D. who
34. Everything depends on ____ they will support you about it.
A. if B. which C. whether D. that
33. Getting a right job can be difficult ____ the students ____ prepared to deal with the job interview.
A. if; won’t B. unless; will C. unless; are D. if; are
32. Li Fang is very busy, ____ she’s always helping others with their lessons.
A. but B. although C. so D. for
31. Grandpa used to tell us something about the “Cultural Revolution” __ he had time to spare.
A. as soon as B. as C. so that D. whenever
30. She said to me, “I’ll tell you the result of the test ____ I know it.”
A. because B. the moment C. after D. though