问题描述： 改错：How long have you bought this coat you are wearing? 1个回答 分类：英语 2014-11-04 问题解答： 我来补答 改为：How long have you been bought this coat you are wearing?因为”买”是短暂性动词,如果要用完成时就一定要有延续性的动做的词．一般如果短暂性的动词用完成时的话就要加”BEEN”． 展开全文阅读
