格式错了,名字错了.
Dear Debbie,
It's very kind of you to plan to adopt a homeless dog.Because animals are friends of our human .We shoud protect and love them.The problem with homeless animais is more and more serious now .We shoud try our best to solve this problem,and now you are doing it .Don'worry(不知道为什么要写在这里,跟前后好像联系不大).If you want to adopt a homeless animal（文章中的animal跟前面的dog觉得不搭）,you 'll have to be responsible for it.so you need to spend some time and energy to keep it.And you also need to(其中我觉得你情态助词尽量少用must have to 这样太肯定的语气,不礼貌) know the knowledge about how to keep a pet well.Keeping a pet is hard,but it's happy （不用too了,你前面用了but）.I hope you could keep the dog well.
yours
Wang Dan