根据句意和括号中的汉语提示完成句子。

1. The prize giving _______ (典礼) was held on September 3rd.

2. We enjoyed the _______ (美丽)of nature.

3. Mr. Lee is an old Chinese teacher with _______ (丰富的) teaching experience.

4. How many colleges does the university _______(包括)?

5. He makes a _______(动作)of impatience.

保险代理从业人员在执业活动中，在执业活动中加强业务学习，不断提高业务技能。这所诠释的是职业道德原则中的（）

A.客户至上原则

B.诚实信用原则

C.勤勉尽责原则

D.专业胜任原则