Hello Fatemeh
Luckily for You, like for thousand other students, the European Unis are very tolerant and accept people from all over the World. It is hard to tell what Uni you stand a chance of getting in because we do not know how well you passed your BS but when it comes to postgraduate courses in France(Masters or PhD) most Top universities require a 2.1 Hons(English honorary system of classifying Graduates) to be accepted for a Masters Course. If you want a more general info do tell us please what your grade was, if any, and what Uni are you interested in studying.