are you french too和you are french too是不是都行

are you french too和you are french too是不是都行 请问,are you french 和 is you french 我想问新概念第一册有一句话是 Are you french,too?French表达的是法国人,为什么不变为French You are a really French are you french?are you a teacher? you are too pretty You are too beautifull ..Are you French?..可以用Are you a French?为什么书上问的时候都不带不定冠词? you are driving too slow you are driving too s you are too pretty介绍 you are going too far are you from canada,too