题目内容
—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:D
提示:
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。
|
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