Найти и исправить ошибки в следующих i`ll do it when i have finished to eat. i shall bring them as soon as i has bought them. our parents, which are very old, live here. i shall do it when i finished this letter. cars what are expensive are usually fast. what a beautiful valleys! this man what is my neighbour has caused the accident. заранее ! )

I`ll do it when I  finish to eat.
I shall bring them as soon as I buy them.
Our parents, who are very old, live here.
I shall do it when I finish this letter.
Cars which are expensive are usually fast.
What a beautiful valley!
This man that (who) is my neighbour has caused the accident.