Question

【题目】— Is it ______ apple?
— Yes. It is ______ big apple.
A.an, a
B.an, an
C.a, an

Answer 1

【答案】A
【解析】apple的词首音素是元音，故用冠词an。big apple：词首音素是辅音，故用冠词a。故选A。