-What’s the matter with you?- the window, my finger was cut unexpectedly. [ ]A.
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![-What’s the matter with you?- the window, my finger was cut unexpectedly. [ ]A.](/pic/43_1439695.jpg)
—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
试题答案
D