1. 选词填空

When  What  Where  Which  Why

1. （1） — do you do on the weekend?
   —I often go for a walk.
3. （2） — is your pencil?
   —It's on the desk.
5. （3） —do you like winter?
   —Because I can sleep all day.
7. （4） — do you go to school?
   —I often go to school at 7o'clock.
9. （5） — season do you like best?
   —I like spring best.