Write what subjects you would like to have once/twice/three times or

I would like to have ones a week a subject Math, because I m not so good in it. Math is not so important for me, because I" m going to be an artist in the future. I like drawing so much, and I would be happy to have a subject Art three times a week. I m very good in this subject and I attend the Art school. Also I like a subject - History. I like to get information about old times, it is very exciting to know how people lived in the past. I would like to have this subject twice a week.