一道英语选择题The moon travels around the earth once every month,--

问题描述：

一道英语选择题The moon travels around the earth once every month,__is known to everyone.
as用于从句是被动的句子中which用于从句是主动的句子中 which 不能用于句首有这种说法吗

1个回答分类：英语 2014-11-29

问题解答：

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which本句也可以用,是非限制性定语从句.但as本句当然也已使用.
因此,本句which,as兼可.
which不可以用于句首,但是若要选一个则选as,因为一般说as is known to everyone,as is known to all等等.
回答完毕.

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