一般现在时:
1、---Are you in No.1Middle School?
---Yes,I am.
2、---Does snows in the north?
---Yes,it does.
现在进行时:
1、---What are you doing?
---I am writing a letter.
2、---What are you looking for?
---I am trying to find my keys.
一般过去时:
1、---Did you come back at 3 pm?
---Yes,we did.
2、---Did you go to see the film?
---No,I didn't.
一般将来时:
1、---Where are you going to visit next year?
---I am going to vist Beijing.
2、---Will you go shopping with me?
---Yes,I will.