Fill in must or mustn't. Example: You must get up at 7 o'clock. 1) You ... do your homework every day. 2) You ... be late for school. 3) You ... talk in class. 4) You ... tidy your classroom. 5) You ... go to bed late.
1) Must 2) Mustn't 3) Mustn't 4) Must 5) Mustn't