Wait hannah in 13 reasons why??? ok:
You should focus on the positives instead of negatives, because there is always light at the end of the tunnel. Be around those who love you, because they are the people who you can trust, and they will never leave you. Finally, get to know yourself, and be aware of what you are doing. Stay true to what your values are.
D because if he fails his class he might not get his scholarship
If you want to incorporate 'for a year", you would need to say 'I have been in Poland for a year.'
But as 'been to' suggests just a visit and not a long stay, you may want to use "I had gone to Poland a year ago.'
Essential, both mean something is very important