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What were you doing when the UFO arrived?
Cheng Jiachuan Middle School
Guo Heng
有关外星人的某些图片
aliens
( Unidentified Flying Object )
UFO
1947年6月24曰,一名叫做阿诺德的美国商人,架着一架小型飞机在华盛顿州上空,发现一组巨型不明飞行物以1000公里左右的速度,同他一起在空中翱翔。阿诺德的有关目击汇报第一次引起公众的爱好,从此“飞碟”或UFO便迅速流传开来。
UFO
bedroom
living room
bathroom
kitchen
Welcome to my house.
Barber shop
library
He is playing soccer.
He is running.
He is writing .
He was playing football.
What was the boy doing just now?
What is the boy doing now?
He is playing football.
过去进行时
含义: 表达过去某个时刻
正在进行的动作。
构造:
was/were + doing
例句:
I was having an English class at this time yesterday.
目前进行时
含义: 表达目前
正在进行的动作。
构造:
is/am/are + doing
例句:
I am having an English class.