问题
选择题
— Helen, why are you so happy?
— I've got _____ "A" for my history exam. [ ]
A. a
B. an
C. the
答案
答案：B
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— Helen, why are you so happy?
— I've got _____ "A" for my history exam. [ ]
A. a
B. an
C. the
答案：B