根据中文提示，完成句子。2d;v/X7_:|:x
孩子们在刘涛的生日聚会上做什么了？2d;v/X7_:|:x
What did the children do4w)z4s/o*C-L.m2l0P(?+x-M9R Liu Tao’s )O6y+c5K0yparty?2d;v/X7_:|:x