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41. Please be careful when you are drinking coffee in case you ________ the new carpet.
A) crash
B) pollute
C) spot
D) stain（D）
42. I’d rather read than watch television; the programs seem ________ all the time.
A) to get worse
B) to be getting worse
C) to have got worse
D) getting worse（B）
43. Convenience foods which are already prepared for cooking are ________ in grocery stores.
A) ready
B) approachable
C) probable
D) available（D）
44. When I caught him ________ I stopped buying things there and started dealing with another shop.
A) cheating
B) cheat
C) to cheat
D) to be cheating（A）
45. It is important that enough money ________ to fund the project.
A) be collected
B) must be collected
C) was collected
D) can be collected（A）
46. Some old people don’t like pop songs because they can’t ________ so much noise.
A) resist
B) sustain
C) tolerate
D) undergo（C）
47. If only the committee ________ the regulations and put them into effect as soon as possible.
A) approve
B) will approve
C) can approve
D) would approve（D）
48. ________ one time, Manchester was the home of the most productive cotton mills in the world.
A) On
B) By
C) At
D) Of（C）
49. ________ it or not, his discovery has created a stir in scientific circles.
A) Believe
B) To believe
C) Believing
D) Believed（A）
50. Mr. Morgan can be very sad ________, though in public he is extremely cheerful.
A) by himself
B) in person
C) in private
D) as individual（C）
