问题描述: Helen could dance well last year怎么改现在进行时 1个回答 分类:英语 2014-11-06 问题解答: 我来补答 Helen is dancing well now. 再问: 为什么不是helen can dance well now 再答: 现在进行时的谓语部分构成是:am/is/are + 动词的现在分词 展开全文阅读