Сделайте предложения утвердительными did arthur conan doyle write poems? was agatha christie a famous writer?

Arthur Conan Doyle wrote poems.
Agatha Christie was a famous writer.

                                               and a Dog
Once upon a time there was a horse whose name was Reginald.Every morning he was delivering milk, he usually met his friend Blackie, who was a little black dog. 
 Reginald didn’t want to be a milkman’s horse.He wanted to be a racehorse and win the Derbi.  And Blackie, who had rather short legs, wanted to be able to run very fast, like a hound. 
 One afternoon they were sitting in Reginald’s stable.Suddenly Blackie said that he had, an idea.  
«Why do we not eat coal?» — he said. «Trains eat coal a run fast.»
  
They thought about this for a long time, and at last Reginald said: «Let’s try it,» 
 So they went down to the coal cellar. They were going to take some some coal, when Mrs Marry, the landlady, came in.
  «What! You are stealing my coal!» —  she began to cry, and she picked up a piece of coal and threw it at them.They ran away. They had never run so fast in their lives before.
 Just then the Mayor was looking out of the window.  
«Oh, that horse can run fast I’m sure it can win the Derby, look at the dog; it’s a real hound I’ll give them each a medal.» And he did. 

1. Jane’s father is very thin.  

2. Men’s trousers are very expensive.

3. Jim’s shirt is very long.

4. Is your brother a businessman?

5. My mother and I would like some tea.

6. These are Ayşe’s and my books.  

7. Mrs. Brown’s daughters are in the garden.

8. Where is Gökçe’s mother? 9. My father’s car is blue.

10.That rabbit is grey. The rabbit’s ears are long.

11.The students’ books are in the classroom.

12.This is Mrs. Brown’s coat, but these are the children’s coats.

2. Rewrite these sentences using HE, SHE, IT, THEY, WE, HIS, HER, THEIR, OUR, ITS:

1. He is very thin.  

2. They are very expensive.

3. It is very long.

4. Is your brother a businessman?

5. My mother and I would like some tea.

6. These are our books.  

7. They are in the garden.

8. Where is she?

9. His car is blue.

10. It is grey. Its ears are long.

11. Their books are in the classroom.

12.This is hers coat, but these are their coats.