七．完成句子。（每小题2分，共10分）

76. 过去，衣衫褴褛的工人们日以继夜地工作，但他们仍然过着悲惨的生活。

In the past, workers _____ _____ worked _____ _____ ____, but they still lived a sad life.

77. 考试作弊必予追究。

If you cheat in the exam, you will never ________ _______ _______ it.

78. 你自认为很聪明，相反，我认为你很愚蠢。

You think you’re clever; __________ _______ ________, I assure that you’re very foolish.

79. 这一周轮到我值日了.

This week, I will be on duty _______ _________ __________.

80. 夜色渐近, 远山变成了深蓝色.

Evening came slowly. The hills _________ _________ _________ turned dark blue.

肺结核______            A．近亲结婚患病率高

白血病______            B．可接种卡介苗预防

艾滋病______            C．受核辐射后可能致病

血友病______            D．可通过吸毒传播

心绞痛______            E．口服硝酸甘油可自救．