Present Simple/Past Simple/Future Simple/present Continuous/Present Perfect.
Dear Ashton,
I'm sorry i (not/write) to you for so long, but I (be) very busy lately. All last month I (have) exams and (have) to study very hard.
Anyway I (stop) styding now, and I (want) for my exams results. As you see from my letter, my adress (change) and I (live) in Leeds now.
My family family (move) here three months ago. I hope when you (come) to Britain in the summer, you (visit) me. I (be) at home till the middle of August. Then I (go) on holiday to Scotland. Hope to hear from you shortly.
Love, Sarah.