问题描述: Who is that boy _____ in the pool?有急用! 1个回答 分类:英语 2014-09-19 问题解答: 我来补答 swimming swimming in the pool--现在分词短语做定语,修饰前面的名词that boy 正在游泳池游泳的那个男孩是谁? 展开全文阅读