Peter is about the world around him and wants to know everything about it.A. curiousB. exc

问题补充：

Peter is about the world around him and wants to know everything about it.

A. curious

B. excited

C. worried

D. crazy

答案：

(答案→)A. curious

B. excited

C. worried

D. crazy

解析：根据wants to know everything about it可知，Peter是一个求知欲很强大的孩子。在四个选项中A是”求知欲强的，好奇的“，B是”兴奋的“，C是”担心的“，D是“疯狂的”。所以本题选A。