There were so many people talking in the concert hall that I couldn’t ________ the music．A.concentrate onB.fix uponC.centre onD.devote to
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A解析句意为：音乐厅中有那么多人在说话，我不能够集中精力听音乐。concentrate on在此句中表示“集中精力于……”；fix upon要改为fix one’s attention upon; centre on指重要性，“把……作为重点”; devote to要改为be devoted to或devote one’s attention to…。