Atfirstthestudentsdi的精选

问题详情：Atfirst,thestudentsdiscussedthequestionsallinEnglish,butafterawhile,they______speakinginChinese.A．gaveup   B．pickedup   C．turnedup   D．endedup【回答】D【解析】句意：起初，学生全用英语讨论问题...