问题补充:
—What can I do for you ?
—I want MP4 player for my daughter. She needs .
A. a, one
B. an, one
C. the, it
D. an, this
答案:
A. a, one
(答案→)B. an, one
C. the, it
D. an, this
解析:此题考查不定冠词的基本用法。不定冠词有a和an两种:a用于辅音音素开头的词前,an用于元音音素开头的词前。One作为体代词,代替前文所提到的那类事物。