Question

_they her brothers?no,they_

4. ―Are those her cousins? ―_______ . They are her brothers*. A. Yes they are B. No they aren't C. Yes he is D. No he isn't

Answer 1

4. B根据答语中的"They are her brothers."可以判断应作否定回答，而D选项中用表示单数意义的代词he 不合题意。故选B。