Change these sentences into the passive voice: The milkman brings bottles of milk to house. How do people learn language?

Change these sentences into the passive voice:
1. The milkman brings bottles of milk to house
2. How do people learn language ?
3. The manager must sign the cheque
4. The kept me waiting for half an hour
5. John will collect me at the airport
6. They are building a new ring road round the city
7. We can't wear jeans at work
8. Will you invite her to your birthday party
9. They have built a new hospital near the airport
10. Do they speak French and English in Canada