I read useful book in library hour ago.A. an; a; an B. the; a; aC. a; the; an D. a; the; a 题目和参考答案——青夏教育精英家教网—

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I read ___useful book in____ library ____hour ago.

A. an; a; an B. the; a; a

C. a; the; an D. a; the; a

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