如皋品高机械厂电话:找错!快!HELP!!!
来源:百度文库 编辑:高考问答 时间:2024/05/06 05:16:48
He sitted there for a long time without doing anything.
sit-----sat
He has been sitting there for a long time without doing anything.
sitted->was sitted
sitted---has sat
sitted 应该是 sat吧
sitted改为sit