Question

1. You must/mustn,t eat with your hands.
2.You must/mustn,t do your homework.
3.You must/mustn,t go to bed late.
4..You must/mustn,t help your mum.

Answer 1

1 - Mustn't
2 - Must
3 - Mustn't
4 - Must

Answer 2

1. You mustn't eat with your hands.
2.You must,t do your homework.
3.You mustn,t go to bed late.
4..You must,t help your mum.