Going on a trip into space must be quite exciting experience.A. / ; theB. the; aC. the;

发布时间：2020-08-16 08:04:14


Going on a trip into      space must be quite      exciting experience.
A. / ; the
B. the; a
C. the; an
D. / ; an

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A. / ; the
B. the; a
C. the; an
(答案→)D. / ; an
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