Find the correct endings

1. He is never late for school, ..
a) isn't he? b) is he? c) doesn't he? d) does he?
2. He went to school yesterday, ..
a) did he? b) didn't he? c) wasn't he? d) doesn't he?
3. Let's do this work together, ..
a) will they? b) will we? c)shall they? d) shall we?
4. She will be happy to see her friend, ..
a) will she? b) shall she? c) doesn't she? d) won't she?
5. Everybody is satisfied with his work, ..
a) isn't she? b) isn't he? c) aren't they? d) are they?
6. There are many pupils in the classroom, ..
a) aren't there? b) isn't it? c) aren't they? d) are they?
7. Read the text again, ..
a) will you? b) don't you? c) should you? d) doesn't you?
8. Don't touch the wire, ..
a) will you? b) don't you? c) would you? d) won't you?
9. Everything is ready for competition, ..
a) is there? b) isn't it? c) isn't there? d) is it?
10. I'm tired, ..
a) aren't I? b) am I? c) don't you? d) are you?

Заодно объясните, пожалуйста, по какому правилу это задание выполняется