问题
选择题
This is ___________ apple, and that is ___________ banana.[ ]
A. a, an
B. a, a
C. an, a
D. an, an
答案
答案：C
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This is ___________ apple, and that is ___________ banana.[ ]
A. a, an
B. a, a
C. an, a
D. an, an
答案：C