Rewrite the sentence

6. Mary sent me this letter two days ago.

-> I _________________________________________

7. People make compost from vegetables.

-> Compost ____________________________________

8. You must finish this work before Sunday.

-> This work _____________________________________

9. She hasn't used this bicycle for a long time.

-> This bicycle __________________________________

10. I saw a strange man in my garden yesterday.

-> A strange man _______________________________