题目内容
4. (2015 •四川资阳) Bob took a photo of his girlfriend while she at the party.
A. dances B. was dancing
C. has danced D. is dancing
4. B
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题目内容
4. (2015 •四川资阳) Bob took a photo of his girlfriend while she at the party.
A. dances B. was dancing
C. has danced D. is dancing