Teaching is interesting work.A. aB. anC. \D. a very

发布时间：2020-08-21 03:50:14

Teaching is      interesting work.
A. a
B. an
C. \
D. a very

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A. a
B. an
(答案→)C. \
D. a very
解析：work是一个不可数名词，其前不需加不定冠词
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