79. The box weighs 100 kilograms. (对划线部分提问)

　 _______ _______ does the box weigh?

78. She didn’t come to the party because of the heavy rain. (对划线部分提问)

　 ________ _______ she come to the party?

77. Nature reserve can provide food and shelter for wildlife. (同义句)

　 Nature reserve can provide________ _________ food and shelter.

76. The boy did the work on his own. (同义句)

　The boy did the work ________ _________.

75.一场洪水把村庄冲走了。

A flood　 _________ the village _________.

74.桑迪没吃早饭就匆忙上学去了。

Sandy was in a __________ to school _________ eating breakfast.

73.许多人不明白湿地的重要性。

Many people don’t understand the ___________ of the___________.

72.他不做完作业是不会睡觉的。

　He________ go to sleep until he finishes _________ his homework.

71.猎人捕杀大熊猫来获取他们的皮毛。

　_________ kill pandas ________ their fur.

70. The girl will try her best ____________ (learn) English well.