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

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：考查时态。句意：——杰克，你为什么看起来如此疲惫？——噢，我一直都在粉刷房子,并且我明天必须完成。根据句意可知应采用现在完成进行时态，强调动作一直在延续。C项为现在完成时，表示动作已经完成，不符合句意。选D。