85. The shop is 　　　　(关门) at 7:30 in the evening.

84. Computers are very 　　　　(帮助). Many people want to buy one.

83. Of all the 　　　　(发明)，that is the most important one in his life.

82. Tom will go back to England after he finishes 　　　　(旅行) to Beijing.

81. All of the students were 　　　　(激动) about the report given by him yesterday.

80. -I h　　　　 　go to bed before midnight.

-I think that’s too late and it’s bad for your health.

79. -What’s the b　　　　 　hours of that supermarket?　

-From 8:30 a.m.- 9:00 p.m.

78. Quite a few kinds of animals are very f　　　　 　to human beings.

77. In China Teachers’ Day is on S　　　　 　10th.

76. She b　　　　 　two books from the school library yesterday.