1. The student was so _______ (吸引)in the book that he didn’t hear the bell.
2. What happened in the factory is being _______ (私下说) about in the neighborhood.
3. She likes _______ (指示) the direction by pointing with her finger.
4. They _______ (交换) things according to the cost of production.
5. A gentleman with good _______ (礼貌) will be respected by others.
