-The window is dirty.----I know. It for weeks.A. hasn’t cleanedB. didn’t cleanC. wasn’

问题补充：

---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

答案：

A. hasn’t cleaned

B. didn’t clean

C. wasn’t cleaned

(答案→)D. hasn’t been cleaned

解析：句子强调对现在造成的影响是好久没有打扫了，句子要用现在完成时。窗户是被打扫，所以注意被动形式。句意：窗户太脏了。我知道。它已经有好几周没有被打扫了。故选D.