Question

Last Sunday was my birthday. My mother bought ______iPhone4 as ______birthday present for me.

1. A.
   a; a
2. B.
   an; a
3. C.
   a; an
4. D.
   an; an

Answer 1

B
此题考查不定冠词的用法。a用在辅音音素开头的单词之前，an 用在元音音素开头的单词之前。