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.