— Why do you look so worried?
— My MacBook Pro broke down and my paper ______ unfinished since.
A.has been left | B.has left | C.left | D.had been left |
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— Why do you look so worried?
— My MacBook Pro broke down and my paper ______ unfinished since.
A.has been left | B.has left | C.left | D.had been left |