题目内容
6. —It seems that you are happy. Why?
—I met an old friend of mine while I on the street.
A. walks B. walk
C. was walking D. am walking
C
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题目内容
6. —It seems that you are happy. Why?
—I met an old friend of mine while I on the street.
A. walks B. walk
C. was walking D. am walking
C