71. so hard that we are sure to pass the exam.
72. we will be good friends forever.
73. Hurry up, or you will miss your plane.
74. have a wonderful future.
75. keep in touch with each other.
76.çä¸æ¸
77 . We were asked to hand in our papers.
78. She didn't run fast enough to catch the others.
79 He is giving a speech at the graduation ceremony now.
80 They give big hugs to each other.
81 this
82 activities
83 mountain
84 result
85 personal
86 culture
87 relax
88 receive
89 making
90 if
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