问题
选择题
—Are these your erasers?
—_____. [ ]
A. No, these aren't
B. No, they aren't
C. No, these are
D. No, they are
答案
答案：B
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—Are these your erasers?
—_____. [ ]
A. No, these aren't
B. No, they aren't
C. No, these are
D. No, they are
答案：B