I played ping-pong quite well, but I haven't had time to play since the New Year.haven't 后为什么加had , play 为什么是原型? 谢谢
问题描述：
I played ping-pong quite well, but I haven't had time to play since the New Year.
haven't 后为什么加had , play 为什么是原型? 谢谢
答
现在完成时标准格式have done,所以had
have time to do sth,不定式用原型play