题目内容
I ________ the living room.Look, it is clean.
A.clean
B.am cleaning
C.have cleaned
-Hi, Tracy, you look tired.
-I am tired. I ________ the living room all day.
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I ________ the living room.Look,it is clean.A.clean B.am cleaning C.have cleaned
I ________ the living room.Look,it is clean.
A.clean B.am cleaning C.have cleaned