Поставьте следующие предложения во множественное число. 1. this is a star. 2. this is a boy. 3. this is a baby. 4. that is a plate. 5. that is a flower. 6. that is a bookshelf. 7. is this a sofa? 8. is this a bookcase? 9. is this a man?

1. These are stars.
2. These are boys.
3. These are babies.
4. These are plates.
5. These are flowers.
6. These are bookshelves.
7. Are these sofas?
8. Are these bookcases?
9.  Are these men?