--- Let’s go to play football, shall we? --- Sorry, I can’t. I must go over the points the teacher explained I forget them.A．afterB．whenC．beforeD．since 题目和参考答案——青夏教育精英家教网—

题目内容

--- Let’s go to play football, shall we?
--- Sorry, I can’t. I must go over the points the teacher explained ______ I forget them.

A．after

B．when

C．before

D．since

连词辨析。A.在……之后；B. 当……时 C. 在……之前D. 自从……以来。句意：让我们去踢足球，好吗？——抱歉，我不能。我必须在我忘记他们之前复习老师解释过的要点。故选C。

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