问题
选择题
— What ___________ it?
— It's ___________ elephant.[ ]
A. an, an
B. is, an
C. are, an
D. is, a
答案
答案：B
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— What ___________ it?
— It's ___________ elephant.[ ]
A. an, an
B. is, an
C. are, an
D. is, a
答案：B