1.语法有问题,重新帮你写了一遍,顺便把字填了.
Dear xx(用son太别扭）:
We are glad to know that you have arrived safely at ___,and is ready to embark on your new journey.Everything is fine at home,so you do not have to worry about us.Now that you are alone abroad,you will have to be more independent.Do try to be friendly to your roommates and classmates,establishing good social networks is as important as studying.Remember to have your meals on time.Give us a call or send us a letter if you are short on cash.The weather is turning cold now,take care!
2.
My parents have always been the best parents anyone could ever have.Though I have never been an appropriate son as much as they are wonderful parents,they never give up on me.They always appear when I am most vulnerable and give the exact kind of support I need.When everybody else around me turn their backs on me,I will always rest assured that my parents would be there for me.They have also been generous in their encouragement,constantly motivating and propelling me to brave obstacles lying ahead of me.In conclusion,they are the miracle pillars that will always accompany me through dark times,and will never fade away.