用单词的正确形式填空

1. Mary is much                 _(outgoing)than Betty.

2. I wish to speak English as _       ( well) as you.

3. My father used to         ( smoke) a lot, but now he doesn't smoke anymore.

4. David jumped the _       ( high) of all boys.

5. Don't give up _         ( work) hard. You'll succeed soon.