The boy has to stay at home to look after his litter sister ?A. does heB. has heC. doesn’

问题补充：

The boy has to stay at home to look after his litter sister, ?

A. does he

B. has he

C. doesn’t he

D. hasn’t he

答案：

A. does he

B. has he

(答案→)C. doesn’t he

D. hasn’t he

解析：在反义疑问句中，如果前半句是肯定句，则后半句用否定句；如果前半句用否定句，则后半句要用肯定句。因为题干的前半部分用的是肯定句，故后面应该用否定句，所以排除AB；又因为前面的has 不是助动词，而是实意动词，应该借助does来问。所以本题选C。