儿童学步鞋哪个好:过去完成时的一般疑问句是怎么样的?
来源:百度文库 编辑:神马品牌网 时间:2024/05/26 17:50:50
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?