问题
选择题
—Why did you stop writing?
—I _____ my writing paper. [ ]
A. ran out of
B. have been used up
C. have used up of
D. have run out
答案
答案：A
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—Why did you stop writing?
—I _____ my writing paper. [ ]
A. ran out of
B. have been used up
C. have used up of
D. have run out
答案：A