问题描述： He is having dinner now (用现在完成时改写句子 1个回答 分类：英语 2014-12-03 问题解答： 我来补答 he has had dinner by now.he has already had dinner. 再问： by present是什么意思 再答： 到目前为止的。。。当今的。。。。 展开全文阅读
