-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 题目和参考答案——青夏教育精英家教网——

题目内容

—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

答案：C
解析：

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