Выберите нужную форму глагола to be в времени. Переписывать предложения не нужно. 1) I (was/were) at home yesterday. 2) Cervantes (wasn’t/ weren’t) a scientist. 3) (Was/Were) you in London last weekend? 4) Mozart and Beethoven (was/were) composers. 5) (Was/Were) Leonardo da Vinci Italian?

1) was
2) wasn’t
3) were
4) were
5) was

Do the astronauts simply put their dirty dishes and rubbish into plastic bags and send them back to Earth? Общий
Who puts the dirty dishes and rubbish into plastic bags and sends them back to Earth? Вопрос к подлежащему
The astronauts simply put their dirty dishes and rubbish into plastic bags and send them back to Earth,don’t they? Разделительный
What do the astronauts put into plastic bags and send back to Earth? Специальный
Do the astronauts simply put their dirty dishes and rubbish into plastic bags or into plastic containers and send them back to Earth? Альтернативный

Living on the ISS while you are a cosmonaut is pretty unusual experience. Let`s talk about the most noticeable features of it.
You have to deal with zero gravity: it makes your meals very special; you have to keep your physique at level with exercises and, unfortunately you have to forget about small signs of comfort - bath, for example. Although, "space station keeping" gives you a lot of work to do each day. It will be hard to sleep there - because of sun rises every 45 minutes and there are no beds around. Despite of all strange things you can also enjoy your stay on it - depends on your mood and eternal stars in theblack sky of space.