Correct: do not, is not
Incorrect: don't, isn't
Hi Sam,
How are things? I (1) ___ (not hear) from you in a while. What (2) ___ (you be) up to these past few weeks? (3) ___ (you finish) you exams yet? Mine start next week and I'm already nervous. Even though I (4) ___ (study) pretty hard since May, it still feels like I have a lot to learn. Oh! Guess what! I (5) ___ (change) my mind about getting a job when I leave school. I (6) ___ (decide) that I want to go to university and study veterinary science instead. Everyone's really surprised, but I (7) ___ (think) about it for a while. As you know, I (8) ___ (work) as a volunteer at an animal shelter for the past two years and I (9) ___ (realise) that helping animals is what I want to do with my life. What about you? (10) ___ (you think) any more about coming to visit me in August?
Britney