He is a boy, that is, he is a boy .A.five-years-old; five year oldB.five-years-o
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He is a ________ boy, that is, he is a boy ________.
A.five-years-old; five year old
B.five-years-old; five years old
C.five years old; five-year-old
D.five-year-old; five years old
试题答案
D
five-year-old为复合形容词，作前置定语；five years old为名词词组，作后定语．