Though we have been staying up for days, there’s still work remaining to be done.
A. a large sum of
B. a plenty of
C. a large amount of
D. a large number of
网友回答
A. a large sum of
B. a plenty of
(答案→)C. a large amount of
D. a large number of
解析：词义辨析。A.一大笔；多用来指钱 B.大量；许多，多用来修饰可数名词 C.大量的；修饰不可数名词 D.很多，修饰可数名词。Work为抽象名词，不可数，故选C。