Вставь подходящие модальные глаголы в предложения (mustn’t, might, have,
could, should).
1. Lena is not at school today, she ____ be ill.
2. You _____ not have finished you task, it’s only 5 minutes since you have started.
3. You ____ ask your Mum’s advice before buying this dress.
4. You ____ to enter a password to register at this site.
5. Students ____ talk at the lessons.