31. Smoking, _______ is harmful for people’s health, is nevertheless popular nowadays.
A. though
B. that
C. although
D. which
32. All _______ glitter is not gold.
A. which
B. that
C. who
D. what
33. You _______ read the article if you don’t want to.
A. can’t
B. needn’t
C. mustn’t
D. shouldn’t
34. Do _______ you are told; otherwise you will be punished.
A. that
B. what
C. which
D. whom
35. It _______, for the ground is wet.
A. must rain
B. ought to rain
C. must have rained
D. should have rained
36. I will never forget the days _______ I spent with my friends in Beijing.
A. when
B. that
C. in which
D. on that
37. It was a good concert — I enjoyed the last song _______ particular.
A. in
B. for
C. on
D. with
38. The truck ran out of control and hit a house.
A. 卡车跑出了控制范围,撞上了一栋房子。
B. 卡车失控之后撞上了一栋房子。
C. 卡车跑出去撞上了一栋房子。
D. 卡车跑出路道撞上了一栋房子。
39. Peter, whom everyone suspected, _______ to be innocent.
A. turned out
B. turned off
C. turned up
D. turned over
40. — What do you find difficult in learning English? — _______
A. Listening and speaking.
B. Don’t be afraid of difficulties.
C. Learning English is useful.
D. Don’t be disappointed.