问题
选择题
— Excuse me, is this egg?
—No, it's cake.[ ]
A. an, a
B. a, a
C. a, an
D. an, an
答案
答案：A
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— Excuse me, is this egg?
—No, it's cake.[ ]
A. an, a
B. a, a
C. a, an
D. an, an
答案：A