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【题目】1 think________is important for us to help our parents do housework during the holiday.

A.thisB.thatC.itD.what

【答案】C

【解析】

句意:我认为在假期帮助父母做家务对我们来说很重要。

考查It作形式主语。本句为含有宾语从句的主从复合句,从句中的句型结构为it is +adj+for sb+to do sth,表示“对于某人来说,做某事是如何的”,it在句型中作形式主语。真正的主语是“to help our parents do housework”。故选C

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