my hair is ____ long ,you'd better get it cut

问题描述:

my hair is ____ long ,you'd better get it cut
a:a bit of
b:a kind
c:a little of
d:kind of
为什么?.

My hair is kind of long,you'd better get it cut
至于为什么,我们加拿大人都这么说.
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A.a bit of 用词不恰当.
B.a kind,根本不行,绝对不能有"a"在前面.
C.a little of,不能说a little of,必须说a little long.
D.kind of最合适,说起来也顺口,语法也通.