问题描述： 谁能告诉我sit、am、hit、study、play、stop、cut、watch这几个的过去式,急用啊, 1个回答 分类：英语 2014-12-04 问题解答： 我来补答 sit-sat-satam-was-beenstudy-studied-studiedplay-played-playedstop-stopped-stoppedcut-cut-cutwatch-watched-watched 展开全文阅读
