Doctorsareconcernedthatthechildren

发布时间：2020-07-26 19:59:16

Doctors are concerned that the children ________ too much time in front of the TV don’t get enough exercise．A.those spendB.who spendC.to spendD.spend

网友回答

B解析先行词是the children，空格处的关系词引导一个定语从句，而先行词在定语从句中作主语。故选择B项。
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