=>
1. In my family, all of the children are obliged to get up before 6 a.m and do exercises.
-> be obliged to ~ bị buộc
2. It's necessary for students to book in advance to use computers at the school library.
-> be adj (for sb) to V
3. In most of the temples and pagodas in Vietnam, you are not allowed to wear your shoes when going inside the main worship areas.
-> be allowed to V: được phép làm gì
4. To visit Ho Chi Minh Mausoleum, people are obliged to hand in their identity cards.
5. In Vietnam, people can't drive on the left of the road.
-> can't V: không thể làm gì