I the book for two weeks. I must return it to the school library.A. borrowB. have borrowe

问题补充：

I the book for two weeks. I must return it to the school library.

A. borrow

B. have borrowed

C. kept

D. have kept

答案：

A. borrow

B. have borrowed

C. kept

(答案→)D. have kept

解析：因为keep 是延续性动词，与后文for+一段时间，故选D