问题
选择题
This is my old photo of my aunt’s when she had _____. And now she has a few _____.
A．short hair; grey hairs
B．short hairs; grey hair
C．short hair; grey hair
D．short hairs; grey hairs
答案
答案：A
表示“全部头发”时，hair是不可数名词，表示“若干根头发；部分头发”时，hair是可数的具体名词。