dear Mary
I know you are unhappy because what you do made your teacher angry.
but everything will be ok,isn‘t it?
you should think more about yourself ,it is wrong to copy other’s homework ,the more you do that ,the lazier you are ,and maybe you will get bad mark at the final exam.
in my opinion,studying is our own task,so try your best to do your homework by yourself ,and put your heart into it.
When you are faced with some difficulties ,you can ask your teachers for help .
and you will find it is a easy thing.
i know you can do it ,come on!