Whatwonderful world it would be if all countries in the world could live inpeace with one

问题补充：

Whatwonderful world it would be if all countries in the world could live inpeace with one another.

A. a;\

B. the;\

C. a;the

D. the;the

答案：

A. a;\

B. the;\

(答案→)C. a;the

D. the;the

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