Dear Jane,
In your last letter you consulted me about my plan for my summer for reference. Here are what I am going to do during my summer holiday.
First of all, insist on taking exercise in order to build up our body. Secondly, do some beneficial reading so that you will broaden your horizons. Thirdly, go sightseeing to appreciate the beauty of nature. In addition, catch chances to be a volunteer. Last but not least, help your parents whenever you can.
I hope you can benefit from these suggestions and I am looking forward to your reply.
Yours,
Jack