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
解析:
解析:
|
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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