高中英语:unit 5 the lake of heaven grammar and practice 课件 人教版选修6 (共18张ppt)
高中英语:unit 5 the lake of heaven grammar and practice 课件 人教版选修6 (共18张ppt)第3页

Having experienced earthquakes before, I wasn’t frightened. Waking up in the middle of the night she saw her room was as light as day. Having stopped the car, we put on our protective clothing. Having spent all night watching the volcano erupting, I was very tired the next day. Coming out of my house, I saw the volcano erupting. Never having seen a volcano erupting before, I was very excited.