Chọn từ thích hợp trong các cụm từ

chọn từ thích hợp trong các cụm từ / .
1 . You must / should / shouldn't be 18 before you can drive in spain . 
2. You don't have to / mustn't / shouldn't go to bed so late . It's not good for you . 
3. You don't have to / mustn't / shouldn't wear a school uniform in not Spanish state schools . 
4. You must / mustn't / needn't come . I can do it without you 
mn help mik ik ạ