题目

We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault. A. run over    B. smooth over     C. pass off     D. turn down 答案：B 解析: 考查动词短语的区分。 smooth over使平息，使恢复正常的，掩饰；run over 溢出；pass off 事件发生； turn down拒绝，关小

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