Read the definitions carefully and select the correct words.
1. a large amount or many different types of thing
2. to successfully complete something or get a good result, especially by working hard
3. something important that you succeed in doing by your own efforts
4. be connected with something/somebody
5. consisting of many different parts and often difficult to understand
6. if something such as a bag, box, or place contains something, that thing is inside it
7. able to speak a language very well
8. If you speak a language or read fluently, you speak or read easily, well, and quickly
9. something that you hope to achieve in the future
10. thoroughly, in depth
11. if one thing includes another, the second thing is part of the first
12. relating to or describing someone's country or place of birth or someone who was born in a particular country or place
13. someone who has learned a particular language as their first language, rather than as a foreign language
14. having the right qualities for a particular person, purpose, or situation