问题描述： john has been to the usa a few times 改为一般疑问句 1个回答 分类：英语 2014-11-16 问题解答： 我来补答 Has John been to the USA a few times?看后面的是谓语是has ,将谓语提到主语前、后面照抄~就好了 展开全文阅读
