1. 用所给词的适当形式填空

1. （1） I'm glad (see)you．

3. （2） My father has never taken up (smoke)．

5. （3） The doctor keeps a record of all the serious (ill)in the village

7. （4） She is trying to lose (weigh)．

9. （5） We'd like to do all we can (protect)our earth．