--Hi,Tracy,youlooktired.   --Iamtired.I

问题详情：

 --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

【回答】

C

知识点：现在完成进行时及其被动式

题型：选择题