They are ( ) students.A.thirteen years old B.thirteen-year oldC.thirteen-year-old D.thirteen-years-old求讲解部分.几个单词中的-有没有有什么区别.year 在什么情况下加S
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![They are ( ) students.A.thirteen years old B.thirteen-year oldC.thirteen-year-old D.thirteen-years-old求讲解部分.几个单词中的-有没有有什么区别.year 在什么情况下加S](/uploads/image/z/10517872-40-2.jpg?t=They+are+%28+%29+students.A.thirteen+years+old+B.thirteen-year+oldC.thirteen-year-old+D.thirteen-years-old%E6%B1%82%E8%AE%B2%E8%A7%A3%E9%83%A8%E5%88%86.%E5%87%A0%E4%B8%AA%E5%8D%95%E8%AF%8D%E4%B8%AD%E7%9A%84-%E6%9C%89%E6%B2%A1%E6%9C%89%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB.year+%E5%9C%A8%E4%BB%80%E4%B9%88%E6%83%85%E5%86%B5%E4%B8%8B%E5%8A%A0S)
They are ( ) students.A.thirteen years old B.thirteen-year oldC.thirteen-year-old D.thirteen-years-old求讲解部分.几个单词中的-有没有有什么区别.year 在什么情况下加S
They are ( ) students.A.thirteen years old B.thirteen-year old
C.thirteen-year-old D.thirteen-years-old
求讲解部分.几个单词中的-有没有有什么区别.
year 在什么情况下加S
They are ( ) students.A.thirteen years old B.thirteen-year oldC.thirteen-year-old D.thirteen-years-old求讲解部分.几个单词中的-有没有有什么区别.year 在什么情况下加S
C
thirteen-year-old,用短横连接变成一个单词,而且是形容词,通常作定语,修饰名词,再如:an eight-year-old boy 一个八岁的男孩
thirteen years old,三个单词,通常在be动词后作表语,如:He is thirteen years old.
6 years old . 6 year- old 有横杠没S
C
只有两种表达法,她们13岁。 They are thirteen years old . thirteen years old 作表语
她们是13的学生。 They are thirteen- year- old students。 thirteen- year- old 做定语