Answer:
1. Hey!
2. Wow!
3. Oh my god!
4. Wheew!
5. Ahhh!
6. Oh!
7. Oww!
8. Mmm!
9. Hey!
10. Woah!
There is no precise interjection in those sentences. Interjections depends on what people have used to say. After all, interjections barely make affect the grammar.