80. Nobody is q　　　　 sure how many bikes there are in Hangzhou.

79. I don't remember w　　　　 　I have left my keys at home or in the car.

78. Don't play with fire. It's far too d　　 　　.

77. I hate having to get up too e　　　 　in the morning. I always feel not having enough sleep.

76. Thousands of turtles(海龟) move onto the beach and l　　　 　their eggs in the sand.

75. The children are always h　　 　when they get home from school. They want something to eat.

74. I'll show you my answers if you'll show me y　　　　 .

73. - Here's your coffee.　

　 - T　　　 　you very much.

72. September is the n　　　　 　month of the year, after August and before October.

根据下列句子及所给单词的首字母，在答题纸上按题号写出各单词的完全形式(每空限填一词)。

71. They spent so much m 　_　 buying a new flat that they didn't have any left over for a holiday.