1. (2021九上·深圳月考) 请选择下列单词的正确形式填空

solve; lead; exactly; step; trouble; excuse; nervous

1. （1） No one can the difficult problem except my father. I'm so proud of him.
3. （2） She took a few forward and then started to speak.
5. （3） I'm sorry to you, but could you tell me how to get to the station?
7. （4） — Is this the right book for you?

   —This is not what I want, but thanks all the same.

9. （5） Could you tell me which path to the beach?