While across the street, you should be careful. [ ]A. walk B. walking C. being w
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![While across the street, you should be careful. [ ]A. walk B. walking C. being w](/pic/43_1429251.jpg)
While _______ across the street, you should be careful.[ ]A. walk
B. walking
C. being walked
D. walked
试题答案
B
![While across the street, you should be careful. [ ]A. walk B. walking C. being w](/pic/43_1429251.jpg)
While _______ across the street, you should be careful.[ ]A. walk
B. walking
C. being walked
D. walked
B