Срочняк помогите мне ответить по инглишу на вопросы

What were the reasons why he didnt get PhD ?
What were his activites?
What was his occupation in 1816?
What were the reasons for his leaving st Peterrsburg?
When did he his career as a diplomat?
When was he arrest in 1826?
What was his work as a diplomat in Persia?
When did he death?
Where was the place where he is buried
тут спрашивается о А. С Грибоедов