—Are those boys your friends ?
—
A. Yes , those are
B. Yes ,they are
C. Yes , they aren’t
D. No, they are
网友回答
A. Yes , those are
(答案→)B. Yes ,they are
C. Yes , they aren’t
D. No, they are
解析：固定短语are these…?的肯定性答语是yes，they are。否定性答语是no,they aren’t.故选B.