() he had passde the exam surprised everyone为什么不用what

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() he had passde the exam surprised everyone为什么不用what

() he had passde the exam surprised everyone为什么不用what
() he had passde the exam surprised everyone为什么不用what

() he had passde the exam surprised everyone为什么不用what
不缺任何成分,属主语从句,所以用that
希望可以帮到你,有不懂的还可以问我^^

That he had passed the exam surprised everyone.
这里,that是一个引导词,引导主语从句,起到一个标志的作为“后面是一个完整的句子,作为整个句子的主语”
而what作为引导词的时候,需要在引导的句子中充当成分,但是从句“he had passde the exam”中不缺任何成分...

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That he had passed the exam surprised everyone.
这里,that是一个引导词,引导主语从句,起到一个标志的作为“后面是一个完整的句子,作为整个句子的主语”
而what作为引导词的时候,需要在引导的句子中充当成分,但是从句“he had passde the exam”中不缺任何成分

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he had passed the exam成分和意思表达都已经完整了, 不需要用what。用That。

是一个主语从句 he has passed the exam 句子做主语,这个句子已经完整不缺任何成分了,只需一个连词that

That
主语从句为陈述句,用That 引导。
_____he had passed the exam 为主语从句

这个句子中成分已完整,只缺少一个连词,只需要用that ,无意义
谢谢
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