This is key and that is eraser.A．a, aB．a, anC．an, aD．the, an 题目和参考答案——青夏教育精英家教网——

题目内容

This is key and that is eraser.

A．a, a

B．a, an

C．an, a

D．the, an

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。

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