How to make these sentences into Plural? (there is a bird on the tree...)

[Kiki]

1. there is a bird on the tree
2. the soldier is on a horse
3. there is a map on the wall of the classroom
4. it is a picture of a flower
5. the teacher of English is a good teacher
6. the book is in a cupboard
7. the lesson is an English lesson
8. there is an egg in the basket
9. the cow is in a field
10. where is the key of the door?

[Kitosdad]

1. There are birds in the trees.
2. The soldiers are on their horses
3. There are maps on the walls of the classroom.
4. These are pictures of flowers.
5. The English teachers are all good teachers.
6. The books are in the cupboards.
7. The lessons are all in English.
8. There are some eggs in the baskets.
9. The cows are in the fields.
10.Where are the keys to the doors?
_________________
Keep it simple ... Keep it interesting.

[Kiki]

Thank you for your help. And how about you Mr. Alan, I need your help

[Mister Micawber]

2. The soldiers are on horses.
3. There are maps on the walls of the classrooms.
4. They are pictures of flowers.
5. The teachers of English are good teachers.
6. The books are in cupboards.
7. The lessons are English lessons.
10. Where are the keys of the doors?
_________________
Native English teacher at Mister Micawber's