Annecouldn’tconcentrate________what

发布时间:2020-07-26 21:02:11

Anne couldn’t concentrate ________ what she was doing while her family were watching TV.A.toB.onC.forD.in

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B解析concentrate与介词on形成固定搭配。句意:全家人都在看电视,安妮不能集中注意力做她正在做的事情。
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