一道英语题目关于连字符的They have an _________son.A.seven-year-oldB.seven years oldC.eight-year-oldD.eight years old

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一道英语题目关于连字符的Theyhavean_________son.A.seven-year-oldB.sevenyearsoldC.eight-year-oldD.eightyearsold一道英

一道英语题目关于连字符的They have an _________son.A.seven-year-oldB.seven years oldC.eight-year-oldD.eight years old
一道英语题目关于连字符的
They have an _________son.
A.seven-year-old
B.seven years old
C.eight-year-old
D.eight years old

一道英语题目关于连字符的They have an _________son.A.seven-year-oldB.seven years oldC.eight-year-oldD.eight years old
C
有连字符看作形容词,这里前面有an则只能用形容词
由于冠词是an,则后面的单词第一个音节发音该是元音,所以题目中就只有eight是元音
所以就应该选C

C.eight-year-old
用连字符时,是不能用复数形式的.
A中的开头字母不是元音,所以不能选.

C 用了连字符不用加S A不是元音开头

C
用了hyphen不用复数,而D的用法不用在定语中。