30. It seems difficult ___________________ everything about the topic. (know)
31. Just avoid ___________________ unnecessary mistakes. (make)
32. Can you imagine ___________________ my car before we leave? (finish)
33. Are you used ___________________ to work ? (drive)
34. She enjoys ___________________ . (paint)
35. I forgot ___________________ the door when I left. (lock)
36. I regret ___________________ you that your application was rejected. (inform)
37. We intend ___________________ you next spring. (visit)
38. I decided ___________________ more often. (exercise)
39. Mary keeps ___________________ about her problems. (talk)
40. Ireland doesn’t allow ___________________ in bars. (smoke)
41. Nancy seemed ___________________ disappointed. (be)
42. I can’t bear ___________________ so much responsibility. (have)
43. She is fond of ___________________ picnics. (have)
44. She promised ___________________ smoking. (stop)
45. They urge their citizens ___________________ more waste. (recycle)
46. John is thinking about ___________________ abroad. (study)
47. She considered ___________________ to New York. (move)
48. The aquarium needs ___________________ . (clean)
49. Tom agrees ___________________ me. (help)
50. She warned him against ________________ late. (be)