They are ___tired.They want to have ___waterA.a bit ,a bit of B.a little,a little of为什么选A不能选B?

问题描述:

They are ___tired.They want to have ___water
A.a bit ,a bit of
B.a little,a little of
为什么选A不能选B?

没有a little of 这种结构的