Please give answer of ex 4

Dear Student.

1. Our team was cheered by us enthusiastically.
2. The guests were welcomed by them warmly.
3. I was helped by one of my friends to complete the project.
4. The application wasn't sent by Mrs. Malik on time.
5. Were you invited by John?
6. When was the information sent by you?
7. By whom was the match won?

We hope that this answer solves your query.
Regards.