题目内容
Had the governments and scientists not worked together, AIDS-related deaths _______ since their highest in 2005.
A. had not fallenB. would not fall
C. did not fallD. would not have fallen
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题目内容
Had the governments and scientists not worked together, AIDS-related deaths _______ since their highest in 2005.
A. had not fallenB. would not fall
C. did not fallD. would not have fallen