1.Children must walk to school.
2.Students must do homework.
3.She can't sing because she ill. --ЭТО С must.
4.People can't sleep all day, they must do something.
5.They must work everyday, they can't watch TV 5 hours.
1.I have a new skirt
2.My mum has a kind heart.
3.She has to go to school. --ЭТО С have to.
4.They have a sport competition.
5.We need to have the best results.