题目内容
— Why? Tom, your shirt is so dirty!
— Mum, I _____ my storeroom downstairs。
A.cleaned |
B.have worked |
C.was cleaning |
D.have been cleaning |
【答案】
D
【解析】略
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题目内容
— Why? Tom, your shirt is so dirty!
— Mum, I _____ my storeroom downstairs。
A.cleaned |
B.have worked |
C.was cleaning |
D.have been cleaning |
D
【解析】略