单选题 —Hi, Winda, you look tired.
—I am tired. I ______ the living-room all day.
  • A. painted
  • B. have been painting
  • C. had painted
  • D. have painted


【正确答案】 D
【答案解析】现在完成进行时表示“一天都在粉刷卧室”，直到刚才结束。