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.