3. Choose the best option. 1) Astronauts have to / don't have to exercise regularly. 2) Water can't / can float around the station. 3) Astronauts can't / can use a normal shower. 4) Small objects can't / can float away. 5) Astronauts don't have to / have to keep the station clean. 6) On Earth, people don't have to / have to attach their sleeping bags to a wall.

Перевод задания: Выбери лучший вариант.

1. Astronauts have to exercise regularly. (Астронавтам необходимо регулярно заниматься.) Невесомость может ослабить мышцы.
2. Water can float around the station. (Вода может парить по станции.)
3. Astronauts can't use a normal shower. (Астронавты не могут пользоваться обычным душем.) Вода может попасть в оборудование.
4. Small objects can float away. (Маленькие предметы могут уплыть.)
5. Astronauts have to keep the station clean. (Астронавтам необходимо поддерживать чистоту на станции.)
6. On Earth, people don't have to attach their sleeping bags to a wall. (На Земле людям не нужно прикреплять спальные мешки к стене.)