1.You must Be silent when studying in a library.
2.You must have your passport with You when travelling to Turkey.
3.You can go for a walk with your boyfriend.
4.You mustn't hold your hands or kiss in public in some countries.
5.You don't have to wear a dinner jacket at this event.
6.You have to respect her final decision.
7.You can't walk your dog in this park.
