— go to the zoo this Sunday morning? —Good idea! A. Why not B. How about C. Would you like

问题补充：

— go to the zoo this Sunday morning? —Good idea!

A. Why not B. How about C. Would you like

答案：

解析：Why not为什么不做某事，做某事怎么样，后面接动词原形；How about……怎么样，后面接名词或者动名词作宾语； Would you like你愿意……，后面接不定式作宾语。句意：这个周日上午去动物园怎么样？——好主意。根据下文圆形动词ｄｏ，可知选Ａ。