1. 用and，but，or填空

1. （1） Work hard，  you will pass the driving test．
3. （2） Stop cutting trees， the earth will become worse and worse．
5. （3） They bought Granny a present  she liked it very much．
7. （4） They all went to the cinema，  I didn't．
9. （5） --Hello，Mr. Huang!

     --I'm sorry，  I don't think I know you．