用was,were,wasn't,weren't来回答.The floor w__________ not clean.
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![用was,were,wasn't,weren't来回答.The floor w__________ not clean.](/uploads/image/z/2896119-63-9.jpg?t=%E7%94%A8was%2Cwere%2Cwasn%27t%2Cweren%27t%E6%9D%A5%E5%9B%9E%E7%AD%94.The+floor+w__________+not+clean.)
用was,were,wasn't,weren't来回答.The floor w__________ not clean.
用was,were,wasn't,weren't来回答.
The floor w__________ not clean.
用was,were,wasn't,weren't来回答.The floor w__________ not clean.
The floor 这里应该是一个整体 选单数was吧
was
was.