题目

I was too sad to ______my tears when I heard the sad news.        A．keep up         B．keep out   C．keep back          D．keep away 答案：       C     解析:        题意：当我听到那个悲伤的消息时，我难过的泪水止不住地往下流。keep up 保持；keep out 挡住，使进不去；keep back 阻止；keep away 远离。

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