Answer:
2. Extrovert
3. Avert
4. Traverse
Explanation:
All you have to do is take the prefixes, mix them with the roots, and search what the words mean. For example, I found the answer to number three because the prefix "a-" means away from (as the word box tells you) and then I put "a-" with both "vert" and "verse". I knew that "avert" was correct because avert means to turn away. But you could simply put "a-" with "vert" and "verse" and search what the words meant.
I hope my explanation wasn't too confusing :)
