Playingwithacellphone,hesuddenly________theteacherstaringathimA.knewof

发布时间：2020-08-14 00:34:21

Playing with a cell phone, he suddenly ________ the teacher staring at himA.knew ofB.became aware ofC.reflectedD.aware for

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B解析考查短语辨析。knew of 了解，became aware of 意识到，reflected 反映，句意：他在玩手机，他突然意识到老师正在盯着他。所以选B。
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