The great hall was crowded with many people, （）      many children
           on their parents’ laps.

题目解析[填写题目解析]： 答案：A 解析：这道题考察的是非谓语动词和定语从句的用法。句子中空格前面是"The great hall was crowded with many people"，后面是"many children on their parents’ laps"，我们需要用非谓语动词作为定语修饰"many people"，选项A中，"including"是现在分词，符合非谓语动词的用法，且含义是"包括"，与句子意思相符，"seated"作为现在分词作定语修饰"people"，表示"坐着"，整体句子意思为"大厅里挤满了很多人，包括很多坐在父母膝上的孩子"。