Rewrite the sentences using must or mustn't./ переписать предложения, используя must/mustn't.
пример: Don't drop litter.
You mustn't drop litter.
1 Don t walk on the grass.
.
2 Turn off the TV before
you go to bed.
.
3 No talking when they
are filming.
.
4 Do not record video.
.
5 Turn off your mobile phone.
.
6 Listen carefully to the
director.