问题描述：
— Hi,Alice!What's this in English?— It's ____
— Hi,Alice!What's this in English?
— It's ______ eraser.
[ ]
A.a
B.an
C.the
D./
— Hi,Alice!What's this in English?
— It's ______ eraser.
[ ]
A.a
B.an
C.the
D./
问题解答：
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