I think he has tried his best to improve his handwriting ?A. don’t I B. do IC. hasn’t heD

问题补充：

I think he has tried his best to improve his handwriting, ?

A. don’t I

B. do I

C. hasn’t he

D. has he

答案：

A. don’t I

B. do I

(答案→)C. hasn’t he

D. has he

解析：选C。考查反意疑问句。前面的I don’t believe为否定前移, 实际否定的是宾语从句, 故后面的反意疑问句使用肯定形式, 故选C。