He was busying writing a story, only once in a while to smoke a cigarette. A. to stop B. t——青夏教育精英家教网—

摘要： He was busying writing a story, only once in a while to smoke a cigarette. A. to stop B. to have stopped C. stopping D. being stopped

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He was busying writing a story, only ____ once in a while to smoke a cigarette.

A. to stop B. to have stopped C. stopping D. being stopped

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