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.