Here are suitable words to fill in the blanks in the passage:

1. **were**
2. **changed**
3. **great**
4. **lighting**
5. **doves**
6. **high**
7. **intense**
8. **reward**
9. **compete**
10. **like**

For the unfinished sentences:

1. I would advise Mary to take up badminton.
2. It was too old to keep.
3. How long have you been learning English?
4. Because of the bad weather, they didn’t find the trip interesting.
5. Football is considered the best game to play.
6. Without everyone's efforts, we could have lost that match.