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 12:23:21
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?
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来源:百度文库 编辑:查人人中国名人网 时间:2024/10/01 12:23:21
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?