Wouldn’t it be wonderful world if all nations lived in peace with one another?A. a; /B.

问题补充：

Wouldn’t it be wonderful world if all nations lived in peace with one another?

A. a; /

B. the; /

C. a; the

D. the; the

答案：

(答案→)A. a; /

B. the; /

C. a; the

D. the; the

解析：本题考查冠词。a wonderful world一个精彩的世界；in peace和平的，平静的，故选A。