Упр.1 Часть 7c Рабочая тетрадь ГДЗ Spotlight 8 класс

Rewrite the sentences by replacing the underlined expressions with the correct modal verb (couldn’t, can, need, needn’t, ought to, must). Make the necessary changes.

1. Richard has the ability to solve maths problems very quickly.
2. It isn’t necessary to stay in the exam hall after you have completed the test.
3. I advise you to seek help if you are having problems understanding something.
4. Nia is a very well-behaved child. I doubt that she was nasty to the other children.
5. It is necessary for you to have a computer password.
6. Students are obliged to be on time for class.