I believe it’s the second one sein
Answer:
1. dir
2. euch
3. dir / euch can be both not decleared how many people
4. sich
5. euch
6. dir
7. mir
8. mir
9. sich
10. sich
11. putze
12. schneide
13. anziehen
14. rasiere
15. wasche
16. I am not sure what verb u or your teacher wants but i would say "wäschst" or "rasierst"
Explanation:
Just put in 15 minutes to 1 hour of extra work a day, in Language, Science, Math, take breaks in between if you can't concentrate long periods of time.