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题库 / GMATLA-SC-142
According to a recent survey of municipal services, the city's streets could be cleaner, its fire code be better enforced, and its crime rate reduced if the current administration improved its management practices.
be better enforced, and its crime rate reduced
better enforced, and its crime rate reduced
could be better enforced, and it could reduce its crime rate
better enforced, and its crime rate could reduce
could be better enforced, and its crime rate reduce
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if the current administration improved its management practices....这里不是if的虚拟语气吗？与现在的事实相反，从句用动词过去式，主句用should/could/wouid＋原形？
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