Read these sentences and choose 'must' or 'mustn’t'. 1. We ___ stand up when the teacher arrives in the classroom. 2. You ___ wear a cap in the classroom. 3. You ___ touch this.
Ответ:
1. We must stand up when the teacher arrives in the classroom.
2. You mustn't wear a cap in the classroom.
3. You mustn't touch this.
большое спасибо !!!!!