Question

【题目】—Hi, Tracy, you look tired.

—I am tired. I__________ the living room all day.

A. painted

B. had painted

C. have been painting

D. have painted

Answer 1

【答案】C

【解析】表示一直在进行中的动作，“我”一整天都在粉刷房子，用现在完成进行时。