Change the sentences below into the correct passive voice

 Change the sentences below into the correct passive voice.
2. She has bought a car. ............................ -->
3. Jack is washing his car. ................................ -->
4. The boys were playing football. .............................. -->
5. They will do it later. ................................ -->
6. He is going to decorate his room. ............................. -->
7. She can write a poem. ............................... -->
8. He should do his homework. ............................ -->
9. They must make a call. ....................................... -->
10. She might buy a house. ............................. -->
help me