The last half of the nineteenth century----- the steady impr

问题描述:

The last half of the nineteenth century_____ the steady improvement in the means
A.has witnessed B.was witnessed
C.witnessed D.is witnessed
1个回答 分类:英语 2014-09-24

问题解答:

我来补答
C.
witness在此表示见证,可以用物做主语.一般不用被动语态.本句单纯叙述一个过去的事实,所以不选A.
 
 
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