—The windows are dirty.
—I know. They _________ for weeks.
A．haven’t cleanedB．didn’t clean
C．weren’t cleanedD．haven’t been cleaned
D
這題考查時態(tài)語態(tài)的用法，時間是for weeks，說明是表示幾個星期都沒被打掃了。用現(xiàn)在完成時的被動式。句意是：--窗戶很臟。--我知道，他們幾個星期沒擦了。選 D。
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