[题目]By the late 1960s, their style of music completely.A．changed B．have changedC．had changed D．was changed 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】By the late 1960s, their style of music _____ completely.

A．changed B．have changed

C．had changed D．was changed

【答案】C

【解析】

试题分析：考查时态。A是过去时；B现在完成时，表示已经改变；C过去完成时；D表示被改变，根据时间状语By the late 1960s到19世纪60年代末，音乐风格的改变是过去时的事情，首先要用过去的时态，另是已经改变，用过去完成时较为符合语境，句意：到19世纪60年代末，他们的音乐风格已经完全改变。故选C

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