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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:711

–Cathy, can you answer the door? I ______ the room.   –I’m coming, mum.

A.clean B.cleaned
C.have cleaned D.am cleaning
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–Cathy,canyouanswerthedoor?Ith