Change these yes - no questions into passive voice

Change these yes-no questions into passive voice:
1. Do they teach English here?
->......................................................
2. Will you invite her to your wedding party?
->.....................................................
3. Has Tom finished the work?
->...................................................
4. Did the teacher give some exercises?
->...............................................
5. Is she going to write a poem?
->....................................................
6. Must we finish the test before ten?
->.......................................................