1 b ,2 g, 3 h ,4 a , 5 d , ,6 c, 7 e ,8 f,
2.I have to visit my aunt this weekend
3.We don't have to send postcard we're on holiday
4, You have to be home nine o'clock
5.David doesn't have to go to school today because it' holiday
6.I don't have to finish my homework now
7.My dad has to get up early every day.
8.My brother and I don't have to do the washing up
9.Mum has got says we be good
10. You didn't have to eat that if you don't like it.
2.You must be polite
3. You mustn't eat in class.
4.You must work hard
5.you must help your classmates
6.You must west smart clothes.
7.You must arrived on time
8, You mustn't smoke.
9.You must copy other student's work.