71.聽到這不幸的消息，她禁不住哭了起來。(on hearing…

72. 對學(xué)生來說，學(xué)好一門外語是必要的和重要的。(it)

73. 李梅病了，老師決定幫他補上所缺的課。(make up for)

74. 像那樣的問題是容易回答的。(such)

75. 為了節(jié)省錢，你可以乘公共汽車去那里而不要叫出租車。(save)

76. 許多書籍和雜志能提供給我們精神食糧。(provide)

77. 總的來說，酸雨是工業(yè)發(fā)展的結(jié)果。(result

78. 小紅的作文很令人滿意，我肯定她的老師會對它滿意。(satisfied)

79. 我們將盡可能多地改進我們的工作。(possible)

80.人人皆知抽煙有害于健康。(damage)

71. On hearing the sad news, she couldn’t help crying.

72. It is necessary and important for the students to learn a foreign language well.

73. Li Mei is ill and her teacher decides to help her make up for the lessons she missed.

74. Such a question as that is easy to answer.

75. To save money, you may go there by bus instead of calling a taxi.

76. Many books and magazines can provide us with mental food.

77. Generally speaking, acid rain is the result of the development of industry.

78. Xiao Hong’s composition is quite satisfactory. I’m sure her teacher will be satisfied with it.

79. We will make as many improvements as possible in our work.

80. Everyone knows that smoking damages people’s health.