问题
选择题
--Hi, Tracy, you look tired.
--I am tired. I__________ the living-room all day.
A．painted
B．have been painting
C．had painted
D．have painted
答案
答案：B
本题是对动词时态的考查。解此题的关键是抓住答语中的aⅡday，而D项只表示动作已经完成，没有强调一直做。
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