题目内容
--- What’s the matter with you?
--- _______ the window, my finger was cut unexpectedly.
A. Cleaning B. To clean C. While cleaning D. While I was cleaning
D
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题目内容
--- What’s the matter with you?
--- _______ the window, my finger was cut unexpectedly.
A. Cleaning B. To clean C. While cleaning D. While I was cleaning
D