Last year when I told my teacher my situation, she said that I don't have to worry about it, and when it was time to do the presentation she gave me the full grade and I didn't have to do it so she was nice about it. This year my business teacher told me that she’s gonna read my presentation for me which would be weird because it's a presentation about me and my life, etc so I guess I have to do that one. But it only depends on the teacher...You should try to ask, even if they say no and u still have to do it at least you tried.