keep work过去式当keep和work在一句话里,keep在work前,那个变哪个不变?
问题描述：
keep work过去式
当keep和work在一句话里,keep在work前,那个变哪个不变?
答
keep working 吧 过去式 kept working
答
应该是kept work吧
答
看我的例句
He keeps working.
He kept working.