2.17Most of work in these workshops are done by robots.

问题描述:

2.17Most of work in these workshops are done by robots.
are done 错了 应该改为 为什么~
1个回答 分类:英语 2014-10-08

问题解答:

我来补答
is
这个要看主语most of work中的work
确定单复,可数不可数
 
 
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