Question

---Shirley, you look tired．

---I’m tired．I ________ the living room all day．

1. A.
   have painted
2. B.
   had painted
3. C.
   painted
4. D.
   have been painting

Answer 1

D
从题意中可以看出，第一个人问第二个人为什么看上去那么疲劳，第二个人回答说因为她刷了一整天的起居室。表示一段时间内一直在做某事要用现在完成进行时态。