Here is the solution to the exercise:
1. Matthew is waiting on the corner for his girlfriend, but she **has not arrived** yet.
2. My brother lives in a different country. I **have not visited** him for two years.
3. Ellie and Bill got a divorce five years ago. They **have not spoken** to each other since then.
4. It is only 8:45. The class **has not begun** yet.
5. It started to snow last night, and it still **has not stopped**.
6. She has finally decided which car she wants, but she **has not bought** it yet.
7. I heard that the movie at the Roxy Theatre is great, but I **have not seen** it yet.
8. I bought a newspaper today, but I still **have not read** it.
9. He took his car to the service station yesterday, but they **have not fixed** it yet.
10. The Andersons moved out of New York ten years ago, and they **have not been** back to the city since then.