much ( )to help the farmers in our country after the earthquake.

问题描述:

much ( )to help the farmers in our country after the earthquake.
1.has done
2.have been done
3.was been done
4.has been done
说明选择那个答案的理由,我认为是选A,没有被动,
much后为什么谓语动词要单数呢

much就是修饰不可数名词的,单独用的时候也是表示不可数,所以动词要用单数.另外,事情是别人做的,不是事情自己做的,所以要用被动语态