Turn into active

Turn into active
1. My bike is often fixed by my father.
2. My bike isn’t often fixed by my father.
3. Is your bike  often fixed by my father?
4. When is this letter written by Tom?
5. This book is bought by my mother.
6. The export division is managed by Mr. Sam.
7. English is spoken in many countries.
8. The bike is ridden by Nina every evening.
9. Information technology is studied everyday