. Перепишите следующие предложения; подчеркните в каждом из них модальный глагол или его эквивалент.

1. You should think over this suggestion.
2. George had to pay a parking fine.
3. You can investigate the effects of these rays on various materials.
4. The head engineer was to make a report yesterday.
5. Very soon they will be able to test a new engine.
6. We couldn’t repair the car ourselves. We were to take it to the garage.