Получилось слишком много слов. Выбросите лишнее :)
Dear Stan,
Thanks for your letter and it was so great to hear your news. I'm very pleasant that you're asking for my opinion on getting a pet. By the way, I'm writing in order to give you an advice.
To begin with, I have a cat and I think you should get on too. Some people could say that they are selfish but they are wrong. If you take care of your cat properly, it will be your favourite pet. Cat is soft and fluffy creature. After a long hard day it lays on your chest and purrs. And it makes you finally relaxed.
Secondly, I think you should get a cat from an animal shelter. In that way you will help a poor animal to get a new loving home. But be careful - make sure that a kitten is healthy and it has no illnesses.
In the end, you asked me about taking care of a pet. In fact, it doesn't take much time to take care of cat. You just have to change its litter box about once at week, feed it and love it.
That's it. I hope you'll find this information very helpful. Hope to hear you soon.
Your friend