change these sentences into passive voice 
1- Your uncle teaches us English.
2- I need some help.
3- We use this room on special occasion.
4- I shall post these letters tomorrow.
5- They are showing the match live.
6- I was watching the whole seen very carefully.
7- The company was promoting a new product.

1. We are taught English by your uncle.
2. Some help is needed by me.
3. This room is used by us on special occasions.
4. Three letters will be posted by me tomorrow.
5. The match is being shown live by them.
6. The whole seen was being watched by me very carefully.
7. A new product was being promoted by the company.