79. 在山脚下，因为寻不到帮助的人，那位骑自行车的人只有自救。

As there was no one _______ he could ______ to for help at he foot of the mountain, the _______ cyclist had to help himself.

78. 只有在那时， 他才知道用暴力反抗暴力是多么的愚蠢。

　________ then ________he realize how stupid it was to _________ violence with violence.

77. 这产品的质量差，因此顾客坚持要换一个新的。

The product is poor _________, so that the customer insisted that he ________ ________ a new one.

76. 所有从地震逃生的幸存者聚集在避身处，对地震带给城市的破坏感到很震惊。

All the _________ ________ survived the earthquake gathered in the shelters, ________ at the destruction that the earthquake caused to the city.

75. 尽管在遭受如此严重的自然灾害，但只要不灰心，我们终会克服暂时的困难。

Although we are ________ such a severe natural disaster, we will eventually overcome the temporary difficulty as long as we don't_______ ________.

74.有对生活的积极态度，你就更可能成为生活中的成功者。.

Holding a positive __________ __________ life , you are more likely to be a __________.

73. 根据他们的建议，你应尽可能多地用英语和大家交流。

According to their advice, you should ________ _______ others in English as _______as you can.

72. 我们已经改变主意了，不去美国而去加拿大。

We have _______ _______ ______and are going to Canada instead of America.

按照句意，在空格处填入适当的单词使句意完整，每空只能填一个词，请将该部分答案写在答题纸上。

71. 他的故事是根据自己在哈佛上大学的经历而写的。

His story is _______ ______his own experience _______ he was studying in Harvard University.

70.Helping others is really a __________(reward) thing which also brings happiness.