开瓶器怎么开红酒木塞:过去完成时的一般疑问句是怎么样的?
来源:百度文库 编辑:查人人中国名人网 时间:2024/10/01 15:17:05
had 加主语 加 过去分词
Had he finished his homework by the time you got there?
had he been to school?
had 加主语 加 过去分词
Had he finished his homework by the time you got there?
had he been to school?