1、The person who don`t study hard won`t get an American visa.
2、The reason why she likes me have given me a surprise.
3、The place where we will visit is in the southeast part of American.
4、If tommorrow were Christmas,we would stay in the park which is full of flowers that will make us feel happy.【此句不确定,我的翻译主句是虚拟语气,第一个从句是定语从句,第二个是同位语从句,不推荐采纳此句希望你能找到更好的翻译