问题描述： 在英语的句型中一般在什么情况下用到is are am...又一般在什么情况下用到do does 1个回答 分类：英语 2014-12-13 问题解答： 我来补答 Is he a student?Am I beautiful?Are they ten years old?这些主系表结构的句子中需要be动词Do they like playing basketball?Does he look like his father?这些后面是动词,诸如play 、look,他们做一般疑问句的时候需要借助助动词do或者does 展开全文阅读
