he wrote ____ letter to his parents yeaterday.he wrote ____ letter to his pa.a 800wordsb.an 800-wordc.an 800-word'sd.a 800-word顺便说明为什么.
问题描述：
he wrote ____ letter to his parents yeaterday.he wrote ____ letter to his p
a.a 800words
b.an 800-word
c.an 800-word's
d.a 800-word
顺便说明为什么.
答
b
答
b
eighty 的首字母为元音字母e，所以冠词用an,
用连字符要去掉's.
比如 a 9-year-old boy
答
d.a 800-word
a letter 中间加800-word 做修饰定语