注意:1）词数100左右；
2）可以适当增加细节，以使行文连贯；
3）开头和结尾已给出，但不计人总词数。
Dear Charlie，
How time flies! It has been almost a year since your last visit.
How time flies! It has been almost a year since your last visit. How is everything going with you and your family? My parents and I miss you very much.
This summer vacation, I will join a two-week camp
