题目内容
For weeks the street hasn't been cleaned because of the snowstorm in New York, ________ makes it very dirty.
- A.who
- B.which
- C.that
- D.what
B
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--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 |