题目内容
—Yang Liwei is ________ astronaut.
—Yes. He is ________ first Chinese person in space.
A. 不填;a B. an; a C. an; the D. the; a
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题目内容
—Yang Liwei is ________ astronaut.
—Yes. He is ________ first Chinese person in space.
A. 不填;a B. an; a C. an; the D. the; a