问题 选择题

The children _______ a PE class on the playground when it suddenly began to rain.

A.have

B.are having

C.had

D.were having

答案

答案:D

在天气突然下雨的时候,孩子们上体育课应该是正在上,用进行时,本题从句为过去,故主句用过去进行时,故本题选D。

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