is known to us is that the 2016 Olympic Games will be held in Rio de Janeiro, Brazil.A. It

发布时间：2020-08-17 00:57:42

     is known to us is that the 2016 Olympic Games will be held in Rio de Janeiro, Brazil.
A. It
B. Which
C. As
D. What

网友回答

A. It
B. Which
C. As
(答案→)D. What
解析：考查主语从句。本题中的what引导主语从句what is known to us,并在句中做主语。It不能引导主语从句，which指特定范围之内的某一个；as不能引导名词性从句。What引导名词性从句，在句中做主语，宾语，表语等成分。句意：众所周知的是2016年奥运会将在巴西的里约热内卢举行。故D正确。
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