this is a place+ he stayed at /at which he stayed/where he s

this is a place+ he stayed at /at which he stayed/where he stay+when he was a child

请问怎么区分他们的正式程度啊?

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3个回答

this is: 这是

a place: 一个地方

he stayed at when he was a child: 最直接的说法－他小时住在这地方

at which he stayed when he was a child: "at which" 用来指没生命的东西如地方,物件

where he stayed: "where" 用来缩小范围

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