4. A: Be quiet, Todd! You don't have to/mustn't talk during the exam. B: I know. I'm very sorry, Miss.

Перевод задания: Подчеркните правильный вариант.

A: Be quiet, Todd! You mustn't talk during the exam. (Тихо, Тодд! Во время экзамена нельзя разговаривать.)
B: I know. I'm very sorry, Miss. (Я знаю. Простите, мисс.)