45. The mother bought ________.
A.it to her B.it her C.her it D.it for her
46. Don t drink too much coffee in the evening, ________ you won t fall asleep.
A.and B.or C.but D.so
47. It was raining ______ I got off the bus.
A.when B.while C.though D.because
48. Although it s raining, ________ we are going to see him this afternoon.
A.but B.and C.then D./
49. He ________ to bed ________ he finished his work last night.
A.don t go…until
B.didn t go…after
C.went…until
D.didn t go …till
50. I won t go home ________ I finish doing my work.
A.after B.until C.when D.while
51. The thermos is used for _________ water hot.
A.to keep B.keeping C.keep D.kept
52. We often use signs as well as words to tell people _________.
A.what to do
B.to do how
C.how to do
D.to do what
53. The Greens have been in China for almost five years. They ________ eating Chinese food.
http://www.77cn.com.cned to
B.are used to
http://www.77cn.com.cned not to
D.don t use to
54. It s too expensive ________ by plane. I ll go by train instead.
A.travel B.travelling C.travels D.to travel
55. When we found an old man _________ on the ground, we sent him to a hospital nearby.
A.lie http://www.77cn.com.cny C.lying http://www.77cn.com.cnin
56. The number of articles published on smoking ________ surprising.
A.is B.are C.were D.have been
57. Food and water more expensive than ________ used to be.
A.is B.them C.its D.they
58. I don t think the news you told me ________ true.
A.are B.is C.being D.am