Question

.--The boy has to stay at home to look after his little sister,____? ---Yes,beacause his mother has

A does he B is he C doesn't he D hasn't he

Answer 1

答案选C doesn't he
当have, has 不表示“拥有”的意思，或不是作助动词时，否定句或疑问句中要使用助动词do, does或did. 题目中的has to 相当于情态动词，疑问或否定语气时应该使用助动词does, 因此，不能选择B或D。根据前面的陈述部分是肯定语气，答案是C.

Answer 2

C
翻译疑问句的原则是“肯定句，否定答语”或“否定句，肯定答语”。本句由于前面为肯定句，has to 相当于情态动词，疑问或否定语气时借助于助动词does，故选C.
赞同请采纳！

Answer 3

C doesn't he

Answer 4

C,望采纳哈