1. Перепишите предложения, заменяя подчеркнутые выражения верными модальными глаголами. Сделайте необходимые изменения.
1. Richard can solve Maths problems very quickly.
2. You needn’t stay in the exam hall after you have completed the test.
3. You ought to seek help if you are having problems understanding something.
4. She couldn’t be nasty to the other children.
5. You need to have a computer password.
6. Students must be on time for class.
