Present perfect (continuous) tense and Past simple tense

I. Present perfect (continuous) tense and Past simple tense. (Hiện tại hoàn thành (tiếp diễn) và Quá khứ đơn)
1.Eight years ago, we started writing to each other. We have ___________________________________.
2.My father hasn’t smoked cigarettes for a month. It’s a ___________________________________.
3.Mr. Brown bought this car five years ago. Mr. Brown has ____________________________.
4.I haven’t enjoyed myself so much for years. It’s years ______________________.
5.It’s a long time since we last went to the cinema.  We haven’t ____________________________.
6.He last had his eyes tested ten months ago. He hasn’t _______________________________.
7.How long is it since he last wrote to you? When __________________________________________?
8.She hasn’t had a swim since she graduated from university. She last___________________________.
9.Robert and Catherine have been married for ten years. It’s'______________________________
10.When did they start to learn Spanish? How long ___________________________________________?