It is hoped that there will be time in the future when man can beat all diseases.A. a; th

问题补充：

It is hoped that there will be time in the future when man can beat all diseases.

A. a; the

B. a; 不填

C. 不填; the

D. 不填；不填

答案：

A. a; the

(答案→)B. a; 不填

C. 不填; the

D. 不填；不填

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