lucy is the only one _____ comes from the USA.A which B who为什么选B

问题描述:

lucy is the only one _____ comes from the USA.A which B who为什么选B

答案: who

Lucy 是人,定语从句连接词要用 who


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B 因为这是个定语从句 lucy is the only one( _____ comes from the USA.)
括号内部分是从句部分,修饰lucy 由于lucy 指人 因此引导词也应该修饰人 所以是选B