В зависимости от смысла заполните пропуски модальными глаголами и их эквивалентами.
1. Before her illness she …work fourteen hours a day.
2. You see so badly; you … wear glasses all the time.
3. We … understand English people if they speak slowly.
4. It was not a through train so Tom … to change (trains).
5. The students … to take an exam tomorrow