The children and their parents had great funs_____in the park.

The children and their parents had great funs_____in the park.
A、playing
B、play
C、played
D、to play
【正确答案】：A
【题目解析】：本题考查固定用法。句意：孩子们和他们的父母在公园里做游戏，他们玩得很开心。have (great) fun doing sth.为固定用法，意为“做某事有乐趣，做某事很开心”，相当于have a good time doing sth.。故本题选A。