题目内容：

这是一道选择题：
___ work has been done to improve the people's living standard.
A.Many B.A great many C.A large number of D.A great deal of
我选择的是C,可正确答案是D.

优质解答

a great deal of也是大量,许多的意思,只是其后接不可数名词,而其他短语都接的是可数名词
work是不可数名词