Parents see other children doing a lot of things是see sb.doing sth 而she saw the alien get out不是
问题描述：
Parents see other children doing a lot of things是see sb.doing sth 而she saw the alien get out不是
为什么呀
答
see sb doing 看见某人在做某事,强调动作的进行
see sb do 看见某人做过某事,强调动作的完成,且do前省略了不定式符号to