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【题目】 I didn’t hear your call because I__________to music at that time.

A. listen B. will listen

C. am listening D. was listening

【答案】D

【解析】试题分析:句意:我没有听到你的电话因为在那时我正在听音乐。据at that time和语境,故句子用过去进行时,故选D

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