31.I have as much fun planting flowers as I now do_____with students.

80.The departure of the plane has been postponed, so we have nothing to do now but_____.

79.Lessons_____easily are soon forgotten.

78.With winter_____,it's time to buy warm clothes.

77.Deeply_____, I thanked her again and again.

76.She did not know whether to sell her books or_____.

75.,the next , problem was how to make a good plan.

74.Misunderstandings_____from lack of communication,unless_____with properly, may lead to
serous problems.

73.When Laura finally arrived, she apologized_____so late.

72.You might as well_____at the bank near the university.

71.As you are so concerned about the issue, you should make your views_____to other committee members.