Dear John,

I am so happy when I received your e-mail.  I am sorry I have been so busy that I have not written to you for a while. Now I'm going to give you a few suggestions.

I think cycling or swimming is both very interesting. You can choose to go swimming to improve your physical fitness, grow taller, and get stronger. You can also choose to cycle. It can help you have much more toned muscles, both in terms of endurance and visibility. And especially both are very good for reducing stress. So, my opinion is that you can combine both activities during the week. You can cycle on Monday, Wednesday, and Friday afternoons and go swimming on Tuesday, Thursday, and Saturday mornings. This is not a bad choice, isn't it?

Be always happy and stay healthy. Look forward to seeing you soon!

Best wishes,