1 . 用方框内所给单词的适当形式填空

1. Without official______________, you are not ______________to run the company.
2. The robber was caught on the______________. I ______________all that had happened.
3. As a teacher, you should always be ______________with all the students.
4. He insisted on ______________100dollars for the final match, and he thought it was a sure______________.
5. "It is bad ______________to talk too loudly in public," I said to him in a polite______________.
6. He ______________his friendship with me by talking over the phone.
7. If I have nothing wrong, why should I make an ______________to you?
8. He jumped into the cold water to save the drowning girl without______________.
9. I will show you three ______________gifts, and you can choose one from them.
10. Everyone has his own way of ______________who he falls in love with.