— Wow your homework looks great!— I it on my computer.A. didB. doC. will doD. had done

问题补充：

— Wow, your homework looks great!

— I it on my computer.

A. did

B. do

C. will do

D. had done

答案：

(答案→)A. did

B. do

C. will do

D. had done

解析：考查时态。做作业是过去的事情，故用did。