问题
选择题
—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
答案：B
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。