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-The window is dirty． -I know．It for weeks． [ ] A．hasn't cleaned B．didn't clean

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-The window is dirty． -I know．It for weeks． [ ] A．hasn't cleaned B．didn't clean

－The window is dirty．

－I know．It ________ for weeks．

[]

A．hasn't cleaned

B．didn't clean

C．wasn't cleaned

D．hasn't been cleaned

试题答案

答案：D

提示：

前者说：窗户(现在)很脏。后者说：我知道，它已经好几周没擦了。窗户应是被擦，且过去的动作影响到现在。所以要用现在完成时的被动语态。

标签：knowitfordirtythe

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