Water park is a good place .A. to have funB. have funC. having funD. to have a fun

问题补充：

Water park is a good place .

A. to have fun

B. have fun

C. having fun

D. to have a fun

答案：

(答案→)A. to have fun

B. have fun

C. having fun

D. to have a fun

解析：句意：水上公园是一个充满乐趣的地方。to have fun玩的开心，不定式作为定语修饰前面的名词，have fun 为固定短语，故选A