Although modern science has essentially eradicated the bubonic plague from the industrialized word, the occasional patient should be diagnosed every few years with the disease.

A. the occasional patient should be diagnosed every few years with the disease
B. an occasional patient should be diagnosed with the disease once in every few years
C. the disease will be diagnosed in the occasional patient once in every few years
D. every few years the occasional patient will be diagnosed with the disease
E. every few years the occasional patient should be diagnosed with the disease


















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I chose C instead of D, why I cannot use" the disease will be diagnosed" here?

Answer:D