现在进行时
He is reading books in the classroom.
He isn't doing well in his lessons.
Are you going well these days?
Yes,we are./No,we aren't.
How are you feeling today?
过去进行时
He was reading books this time yesterday.
He wasn't at home this time yesterday.
Was she working in a PLA unit at that time?
Yes,we were./No,we weren't.
What were you doing when I called you?
现在完成时
It has been raining these days.
I haven't gone swimming since 2010.
Have you written the article?
Yes,I have./No,I haven't.
How much money have you earn?
过去完成时
When we got to the station,the train had left.
When we got to the station,the train hadn't left.
Had she reviewed the books by the exam?
Yes,she had./No,she hadn't.
How many books had she reviewed by the exam?
一般将来时
It is going to rain.
They aren't going to have a competition with us in studies.I
Is it going to rain?
Yes,it is./No,it isn't.
Who will you play with?
过去将来时
I asked who was going there .
You shouldn't park here.
Were you going to study hard?
Yes,we were./No,we weren't.
What were you qoing to do after that game?
