问题
选择题
—_______ those your grandparents?
—No, _______.[ ]
A. Is, they are
B. Are, they are not
C. Is, it is
D. Are, it isn't
答案
答案：B
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—_______ those your grandparents?
—No, _______.[ ]
A. Is, they are
B. Are, they are not
C. Is, it is
D. Are, it isn't
答案：B