问题描述: Peter with his cousin ___________(锻炼) in the park every morning填正确形式. 1个回答 分类:英语 2014-11-26 问题解答: 我来补答 应该是:exercises主语是Peter,三单,一般现在时,所以用exercises皮特和他表哥每天早上在公园锻炼 展开全文阅读