1.i have _________ useful dictionary.是用a 还是an?
1.i have _________ useful dictionary.是用a 还是an?
This is__ useful dictionary.填a还是an呢?
A dictionary is an useful book.找错
useful 前面是用a还是an 要有原因
useful information前面的冠词是用a还是an?
useful前用a还是用an
useful one前用an还是a
useful前面用an还是a?为什么?
an useful animal?还是a useful animal?
I ( )a new dictionary.It is very useful.A.bought B.have boug
完形填空I have a very useful dictionary.It has a lot of words.It
dictionary前用a还是an?