题目内容
Last month I was lucky enough to have a chance to make a trip into _____ space with my friend Li Yanping, _____ astronomer.
A. the; an B. the; the C. / ; the D. / ; an
D
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题目内容
Last month I was lucky enough to have a chance to make a trip into _____ space with my friend Li Yanping, _____ astronomer.
A. the; an B. the; the C. / ; the D. / ; an
D