Alguien me ayuda con este examen se trata contesta con el tema de must y mustn't, porfa necesito este examen antes del lunes :(

Respuesta:
1. must
2. must
3. mustn't
4. mustn't
5. must
6. must
7. mustn't
8. must
9. mustn't
10. mustn't
11. mustn't
12. mustn't
13. must
14. mustn't
15. mustn't
16. must