помогите составить 10 предложений в present perfect

I have alredy done my homework. They have come back today. We nave never been to England. I have not seen my friends since the holidays. My mother has not answered the letter yet. I have already had my dinner. I have been very busy lately. They have not heard the news yet. Have you ever been to this museum? I have just sent the letter to my parents

1)I have done my homework.

2) You have talk me about this book.

3) He has understand me.

4) I have make your breakfast.

5) I have broken my arm.

6) I have visited London.

7)I have studied English since childhood.

8) I have broken my pencil.

9)He has been to America twice.

10)I have not traveled to Paris.