公路运输承运人在货物起运后，在可能条件下要求变更到达地或收货人。 ( )

Directions:
You heard that one of your friends has been accepted by a foreign university. Write a letter of congratulations including (1) your congratulations; (2) some advice; (3) reminding him to keep in touch with you. You should write about I00 words. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You do not need to write the address.