问题
选择题
—Is this your sister?
—_______.This is my friend. [ ]
A. No, it is
B. No, it isn't
C. Yes, it is
D. Yes, it isn't
答案
答案：B
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—Is this your sister?
—_______.This is my friend. [ ]
A. No, it is
B. No, it isn't
C. Yes, it is
D. Yes, it isn't
答案：B