73. Since you don’t like staying at home, let’s go __________(溜冰).

72. Of all the books, which one is ___________(薄)？

71. There’s something wrong with the door, you have to __________(推) it hard.

70. Would you please __________(唤醒)me up at five tomorrow morning?

69. Your composition is very good except a few ___________(错误).

68. Last year, I went to Tibet and met lots of __________(参观者)there.

67. In about 600 years, there won’t be __________(足够的)room for people on the earth.

66. All the things are keeping __________(变化)all the time.

65. How many kinds of __________(植物)are there in the world?

64. I’d like a cup of tea with __________(糖)in it?