Here are the best answers for each statement based on context:

1. Technology has changed **how** we live and work. (what / how / when / why)
2. Going to class offers you real **interaction** with your teachers and other students. (interaction / relation / lifestyle / competition)
3. The people in my community **maintain** many of their traditions. (create / motivate / encourage / maintain)
4. If Mike **doesn't come**, we'll have to cancel the trip. (won’t come / doesn’t come / didn’t come / hasn’t come)
5. The organization will help them **revive** their folk culture. (raise / release / revive / admire)
6. Staying up late has a harmful **impact** on your health. (diversity / experience / impact / event)
7. This year we will **keep** tradition and go on holiday at Tet. (break / follow / keep / take)
8. The lion dance... **is called** shishi-mai in Japanese. (calls / will call / is calling / is called)

Feel free to ask if you need further explanations or assistance!