问题
选择题
Andrew's singing ______ song. It's _______ American song. [ ]
A. a, a
B. a, an
C. an, a
D. an, the
答案
答案：B
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Andrew's singing ______ song. It's _______ American song. [ ]
A. a, a
B. a, an
C. an, a
D. an, the
答案：B