1) Is there any possibility that we can help her?
2)She has got the Nobel Prize for her activity.
3)There was no regularity in his actions.
4)People of different nationalities live in Russia.
5)It was his responsibility to walk the dog.
Open the door.Don't open the door.Close your book.Don't close your book.Take your pen.Don't take your pen.
Last year his brother didn't study at the evening department
4) There are sixty seconds in a minute (в минуте 60 секунд )