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Doctors and nurses worked tirelessly to screen patients. The disease was kept under control.
A. If doctors and nurses hadn’t worked tirelessly to screen patients, the disease would have been controlled.
B. If it hadn’t been for the tireless efforts of doctors and nurses to screen patients, the disease wouldn’t have been controlled.
C. If doctors and nurses had worked tirelessly to screen patients, they would have kept the disease under control.
D. If doctors and nurses hadn’t worked tirelessly to screen patients, the disease could have been controlled.
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