With my hand-held Reader I’ve read more books in the past six months than I in the past

问题补充：

With my hand-held Reader, I’ve read more books in the past six months than I in the past six years.

A. doing

B. did

C. have

D. do

答案：

A. doing

B. did

(答案→)C. have

D. do

解析：考查动词。根据句中时间状语in the past six years可知用现在完成时态，故用助动词have，选C。