问题
选择题
Four years had passed, and I found Mary had＿＿＿＿＿．
A．little white hair
B．some white hair
C．much white hairs
D．a few white hairs
答案
答案：D
hair 指满头“头发”，为不可数名词；指具体的某种“头发”或一根一根的“头发”，为可数名词。
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