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---Hi,Tracy,youlookedtired.---Iamtired.Ithelivingroomallday.A.paintedB.hadpaintedC.havingbeenpaintingD.havepainted

题目详情
---Hi, Tracy, you looked tired.
---I am tired. I______the living room all day.
A.painted B.had painted C.having been painting D.have painted
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答案和解析
C