文档介绍：The Past Continuous Tense 过去进行时 ::: 表示在过去某一时刻或一段时间正在进行的动作。 was/were + doing 否定式: was/were not + doing 疑问式: Was/Were …… doing ? at this time yesterday at 9:00 last night …… was/were doing when ….did ….. cook a meal at this time yesterday He was cooking at this time yesterday. ride a horse at nine last Sunday He was riding a horse at nine last Sunday. play football at four o ’ clock last Friday He was playing football at four o ’ clock last Friday. this time yesterday clean the classroom She was cleaning the classroom this time yesterday. at ten o ’ clock yesterday morning sweep the floor have a class yesterday afternoon They were having a class yesterday afternoon. at five o’ clock play football They were playing football at five o ’ clock yesterday. play basketball when the teacher came in Jim was playing basketball when the teacher came in.