They usually have lunch at school ?A. haven’t theyB. do theyC. don’t theyD. have they

问题补充：

They usually have lunch at school, ?

A. haven’t they

B. do they

C. don’t they

D. have they

答案：

A. haven’t they

B. do they

(答案→)C. don’t they

D. have they

解析：考查反义疑问句。前面是肯定，后面应用否定反问， have 在这里是实意动词，应借助于助动词，所以选C。