is known to everybody. the moon travels around the earth once every month. A.It B.As C.That D.What 解析:考查非限制性定语从句.关系词放在句首只能用as.若选A应为:It is known to everybody that the moon.... 答案:B 【查看更多】

 

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________ is known to everybody,the moon travels around the earth once every month.

A.It? B.As

C.That? D.What

 

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______ is known to everybody,the moon travels around the earth once every month.

A.It      B.As        C.That     D.What

 

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