题目内容
—— Was the driving pleasant when you went to Mexico last summer?
—— No, it ____ for four days when we arrived, so the roads were very muddy.
A.was raining B.had been raining C.would be raining D.rained
B
解析:
表示在过去某一动作之前一直在进行,并有可能继续下去的动作,要用过去完成进行时。
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