31. After describing the planned improvements, she went on _______ how much they would cost.
A. to explain B. explaining
C. to be explaining D. having explained
32. Please excuse me _______ your letter by mistake.
A. to open B. to have opened
C. for opening D. in opening
33. Please remember _______ the plants while I’m away.
A. watering B. to be watering
C. to water D. being watering
34. Certainly I posted your letter — I remember ______ it.
A. posting B. to post
C. to be posting D. have posted
35. Stop _______ me to hurry up. I can only go so fast.
A. to tell B. telling
C. to have told D. having told
36. Remember _______ off the light when _______ to bed.
A. turning, going B. to turn, to go
C. turning, to go D. to turn, going
37. _______ time, he’ll make a first-class tennis player.
A. Having given B. To give
C. Giving D. Given
38. _______ in 1636, Harvard is one of the most famous universities in the United States.
A. Being founded B. It was founded
C. Founded D. Founding
39. The lady said she would buy a gift for her daughter with the ________.
A. 20 dollars remained B. 20 dollars to remain
C. remained 20 dollars D. remaining 20 dollars
40. The picture _______ on the wall is painted by my nephew.
A. having hung B. hanging
C. hangs D. being hung
41. With a lot of difficult problems ________, the newly-elected president is having a hard time.
A. settled B. setting
C. to settle D. being settled
42. Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
A. to see B. to be seen
C. seeing D. seen
43. Tony was very unhappy for _______ to the party.
A. having not been invited B. not having invited
C. having not invited D. not having been invited
44. “Good morning. Can I help you?” “I’d like to have this package _______.”
A. be weighed B. to be weighed
C. to weigh D. weighed
45. What have we said _______ her so happy?
A. makes B. to make
C. made D. has made
46. What worried the child most was ______ to visit his mother in the hospital.
A. his not allowing B. his not being allowed
C his being not allowed D. having not being allowed
47. “Which sweater is yours?” “The one _______ No. 9.”
A. that marked B. was marked with
C. which marked D. marked with
48.If the car won’t start, _____ it.
A. try push B. try pushing
C. to try pushing D. to try to push
49. They stayed up until midnight _____ the old year out and the new year in.
A. and saw B. to see
C. seeing D. for seeing
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