I have got a _____ cold一道英语题

题目

I have got a _____ cold一道英语题
A a little B a little of
C a bit D a bit of
为什么?

答案

选D.AB为少量的意思,CD为稍微的意思.但of后必须跟名词,cold为名词.而AC选项后跟形容词.