______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么

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______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么
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______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么
______has been done to improve the working conditions A,a lot of B,lots of C,many D,much
______has been done to improve the working conditions
A,a lot of
B,lots of
C,many
D,much
请帮我分析下为什么

______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么
D,much
谓语是单数,所以用much
而且Much has been done to...是常用语,要记住

D,much 是对的。
A,a lot of和B,lots of和C,many都不能单独使用，后面都要跟可数名词的复数形式，只有much可以单独使用，不可数，表示抽象的意思，“大量的工作，事项”

D,much

这道题的考点在于主语必须使用名词或者代词。
A、B不是代词，肯定不行
C、D都可以做代词，但C为可数复数，而谓语是has been done，不成立，因此只有使用D。

D
可以作为一固定用法.
Much has been done to....已经做了很多............因为是抽象的，作不可数。如：
Much has been done to against pollution. 已做了许多工作与污染作斗争。

______has been done to stop pollution by the government .A many B Much C Few D None ______has been done to improve the working conditions A,a lot of B,lots of C,many D,much______has been done to improve the working conditionsA,a lot of B,lots of C,manyD,much请帮我分析下为什么 what had been done had been done. been there done that . been there,done must have been done must have done have been done 和 to be done doing having done being done having been done 造句! being done,have been done和having done怎么分辨 can be done has been Everything that can be done has been done 中can be done has been done HAVING BEEN DONE和HAVE BEEN DONE有什么区别? has been done,had been done 的区别是什么? has been doing have been done区别 been there,done that造句 have been done 语法呢 用having been done 造句 BEEN THERE DONE THAT怎么样 having been done的用法