题目内容
() 4. —Cathy,can you answer the door? I the room.
—I'm coming,Mum.
A. clean
B. cleaned
C. have cleaned
D. am cleaning (2015安徽)
4.D
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题目内容
() 4. —Cathy,can you answer the door? I the room.
—I'm coming,Mum.
A. clean
B. cleaned
C. have cleaned
D. am cleaning (2015安徽)