问题
选择题
— Is this your bike, David?
— No, it's not ____. It's Helen's. [ ]
A. his
B. yours
C. mine
D. hers
答案
答案：C
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— Is this your bike, David?
— No, it's not ____. It's Helen's. [ ]
A. his
B. yours
C. mine
D. hers
答案：C