Помогите пожалуйста кто превосходно знает британский, помогите воткните верно may или

Помогите пожалуйста кто хорошо знает британский, помогите воткните правильно may или can. I .. be able to help you. I ... not swim, because until this year the doctor did not allow me to be more than two minutes in the water. But this year he says I ... stay in for fifteen minutes if I like,so I39;m going to learn to swim. Libraries are quite free, and any one who likes .... get books there. I ... come and see you tomorrow if i have time. Take your raincoat with you: it ... rain today. Do you think you ... do that? I ... finish the work tomorrow if no one bothers me any more. ... we come and see you next Sunday at three o39;clock in the afternoon. What time is it- It ...-be about six o39;clock,but I am not sure. Only a person who knows the language very well .... answer such a question.