His sister has a bad cough she?A. wasn’tB. doesn’tC. hasn’tD. does

问题补充：

His sister has a bad cough, she?

A. wasn’t

B. doesn’t

C. hasn’t

D. does

答案：

A. wasn’t

(答案→)B. doesn’t

C. hasn’t

D. does

解析：本题为反义疑问句，前句为肯定，后句应为否定，结构为助动词的否定结构加人称，本题是一般动词的第三人称单数形式has，故本题的助动词应为does，否定形式为doesn’t，故选B。