Here are the correct forms of the words in brackets to complete the sentences:

1. She takes an **active** part in school life. (ACTIVATE)
2. Our countryside is **appearing** at an alarming rate. (APPEAR)
3. Green is much better than **boring** old white. (BORE)
4. There is a lot of **competition** between rival airlines. (COMPLETE)
5. She’s completely lacking in **confidence**. (CONFIDE)
6. I’m burning with **curiosity**; you must tell me who won! (CURIOUS)
7. Her friends take advantage of her **generosity**. (GENEROUS)
8. A wedding on that scale takes a lot of **organization**. (ORGANIZE)
9. Of course, this is just a **personal** opinion. (PERSON)
10. How **reliable** are the local weather forecasts? (RELY)

Feel free to ask if you need further assistance!