主动语态和被动语态相互转化的题怎么做?

主动语态和被动语态相互转化的题怎么做?
题：变被动语态：
1.We do our homework everyday.
2.Does he often play computergame?
3.We don't often talking about pictures.
4.Look,They're talking about pictures.
5.We are going to have fottball match next week.
6.Next week,they will vist the Children's palace.
7.Are you going th hold a sports meet next week?
8.We must take care of our students.
9.The students can't play computergamne everday.
10.He finished his homework yesterday evening.
11.The teacher didn't allowed the students to play computer.
12.He has collected 120 snowglobe since he was eight.