根据句意用恰当的短语完成句子

1. If you want to catch that train we'd better____ for    the station at once.    

2. Be careful not____ the ladder.    

3. I can't promise, but I____.    

4. Mr. Smith needs more exercises____.

5. Mike has only driven to the pub         his new car-he usually walks !

6. He_______ what he had done.

7. She's a bravely player; she never _______,          

8. He_______ his success more_______ luck than to ability.

9. My friend has gone to another city, but we usually ________.

10. I_______ catch the early train, but I didn't get up in