—Why Jack you look so tired!—Well I the house and I must finish the work tomorrow.A. was

问题补充：

—Why，Jack，you look so tired!

—Well，I the house and I must finish the work tomorrow.

A. was painting

B. will be painting

C. have painted

D. have been painting

答案：

A. was painting

B. will be painting

C. have painted

(答案→)D. have been painting

解析：考查动词的时态。答话人叙述的是现在的事实，再结合答语中的时间状语可知答话人从过去到现在一直在粉刷房子，而且还要持续下去，所以用现在完成进行时。