过去进行时含义： 表示过去某个时刻 正在进行的动作。结构： was/were + doing例句：I was having an English class at this time yesterday. 现在进行时含义： 表示现在 正在进行的动作。结构： is/am/are + doing例句：I am having an English class. A few days ago, a UFO visited the earth, a reporter is interviewing some people where they were then.bedroombathroombarber shopbarberkitchenWordstudyalienWhats he doing now?What was he doing at three oclock yesterday afternoon?He football. was playing . Heis playingfootball. What was she doing at seven oclock yesterday
