chciałabym poprosić Was o spojrzenie na moje dwa wypracowanka i stwierdzili, czy jest dobrze gramatycznie:
Dear Kate,
at the beginning my letter I wanted to make you warm wishes to celebrateyour 18th birthday. I wish you happiness and health. I also thank you for the invitation on your birthday. I would like to arrive at your birthday but I have at the time very much science. I hope that I see you soon.
best regards
xyz
Dear Kate,
I'm very happy that you come to Poland. I would like to invite you for a few days to me. The best travel in Poland is by train because you don't must standing in cork. You should visit Warsaw beacause there are many monuments and Warsaw is the polish capital. You should book room in hotel near the center of Warsaw. If you need help in booking a room I can help you/
best regards
xyz