问题描述： is、are、want、do、ask、answer的过去式 1个回答 分类：英语 2014-12-08 问题解答： 我来补答 is- was 是（单数）are- were 是（复数）want- wanted 想要do- did 做ask- asked 问answer- answered 回答 展开全文阅读
