to begin a letter:
How's everything going?
Thanks for the letter and telling me all your news
Say hello to your family and friends
Sorry I haven't written sooner. I've been away on holiday.
It was great to hear from you the other day
to end a letter:
Hope to hear from you soon
take care
please write back soon
Sper ca e corect!! (ma gandesc ca cea cu sorry i haven't written sooner si it was great to hear from you ar merge la ambele, insa nu stiu sigur)
Sper ca te-am ajutat!