TheAdverbialClause河北省石家庄外国语学校九年级英语课件

after since till / until， not…until as soon as， while before，石家庄外国语学校 The Adverbial Clause 时间状语从句 条件状语从句 目的状语从句 结果状语从句 原因状语从句 I 时间状语从句 when， I was waiting for the bus when I met him 2 They were playing football when it began to，