问题描述: 现在进行时的5句句子 1个回答 分类:英语 2014-09-18 问题解答: 我来补答 主语+be动词(am,is,are)+动词现在分词(doing)i'm watching TV.they are watching TV.he is playing.we are cleaning the room.she is doing her homework. 展开全文阅读