She brought with her three friends,none of whom I had ever met before.

She brought with her three friends,none of whom I had ever met before.
为什么不能用none of them?
英语人气:360 ℃时间:2019-10-19 15:26:35
优质解答
因为后面也是一个完整的句子,如果没有连词会造成语法错误
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