I think is necessary for us to sleep for eight hours everyday.同义句

问题描述:

I think is necessary for us to sleep for eight hours everyday.同义句
I think __ __ for us to sleep for eight hours everyday.
漏掉了,是 I think it is necessary for us to sleep for eight hours everyday.同义句

I think it is necessary for us to sleep for eight hours everyday.同义句
I think it necessary for us to sleep for eight hours everyday.
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