【題目】______ worries me that my daughter plays with her cellphone for a long time every day.

A． It B． What C． This D． That

【答案】A

【解析】代詞it作形式主語代替真正主語，真正主語被后置。主語是從句，我的女兒每天都和手機玩很長時間（“my daughter plays with her cellphone for a long time every day”）。句意：我的女兒每天都和手機玩很長時間，這讓我擔(dān)心。

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