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精英家教網 > 高中英語 > 題目詳情

________is known to everybody, the moon travels round the earth once every month.

A. It B. As

C. That D. What

 

B

解讀這道題時,首先要確定“________is known to everybody,”這一部分應屬于某一類非限制性定語從句,故A、C、D三項應排除。這里的as指“月球每月繞地球旋轉一次”這一事實,引導一個非限制性定語從句,as引導定語從句的一個典型特征就是能夠放在句首。

 

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