The students should read rules before they do the experiment in the lab. 题目和参考答案——青夏教育精英家教网—

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8. The students should read (relate) rules before they do the exper

iment in the lab.

8. related考查relate的用法。句子中需要一个前置定语修饰rules。句意：学生们在进实验室做实验之前应当了解相关的规定。related是形容词，意为“相关的”。

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B. Cannabis cigarettes are more dangerous than tobacco cigarettes.

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D. Cannabis cigarettes damage the lungs as much as tobacco cigarettes.

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