题目内容：

There is ____ paper in the corner of his room.
a. a plenty of b. a large number of
c.a pile of d. dozens of
选择C,为何其他的不可以,譬如像B也可以修饰不可数名词

优质解答

A.应该是plent of
B.a large number of 修饰可数名词,这里paper 不可数
D,也只能修饰可数名词.
C a pile of 一堆, 可数名词/不可数名词皆可.