interesting,的定冠词是a还是an
有没有双元音开头的单词 有的话定冠词是用an 还是a?
exciting前面用定冠词a还是an
是He is a very interesting boy 还是He is an very interesting bo
定冠词the a an的用法?
英语中定冠词a,an的用法
定冠词a,an,the的使用,
英语:定冠词a和an的问题
There is a interesting book.还是an interesting book?
interesting应该用a还是an
英语定冠词 a an用法 It's a old car 还是 It's an old car
英语中定冠词a/an与the的区别?
说明定冠词the和不定冠词a, an的所有用法.