85. This book is very popular with the students at the moment.

84. The policemen arrived just in time to save the boy.

83. One of my classmates was very glad to hear from Bill Clinton.

82. Children prefers snow to rain.　　　　　　　　　

B. 用所给词组的正确形式填空.每个词组只能用一次.

81. He did as the teacher had told him.　　　　　　　　

80. It’s so comfortable lying on the green grass.　　 (to lie)　　　　

79. Take good care of Polly. She must be spoken to every day.　

78. Though we are trying our best, there are fewer pandas than before.　

77. Every day, some trees are being cut down somewhere in the world.　

76. Jim has been to Australia twice.