Management students generally take three exams. You can look at the enrollment brochure of the school you want to take. As for what major to take, it depends entirely on your own hobbies. There are too many majors outside English. If you are not good at math, it depends on whether you want to choose a major that doesn't take math.

It's a little early to start preparing. Postgraduate entrance examination itself is very hard, and it is easy to wear off enthusiasm if the front is stretched too long. Just start preparing for your junior year. As for those who are not good at math, they can be improved completely. As far as I'm concerned, we should try our best to choose a major in mathematics, because there are not many majors that don't take mathematics, which have great limitations and strong professionalism.