Упражнение 3. Вставьте подходящий модальный глагол (must / can / need)

Решение:

1. Sonia must practise so much if she wants to take part in the marathon.
2. If you want to improve your English, you must work very hard.
3. You needn't come to help them tomorrow: the work is done.
4. You needn't change the whole text as the beginning is all right.
5. John must not tell us the rules of the game: we know them.
6. We cannot afford to pay the bill.
7. It is already six o'clock. We must hurry if we don't want to be late.
8. She can decorate a room nicely.
9. You must take care of your parents.
10. We can stay with my brother when we are in Paris.