能帮忙将这几个句子的形式变为被动语态不?1.Does he do his homework in the evening?2.We should allow sixteen-year-olds to study with their friends.3.The teacher often asks him to do his homework alone.4.Can students answer these quest

能帮忙将这几个句子的形式变为被动语态不?
1.Does he do his homework in the evening?
2.We should allow sixteen-year-olds to study with their friends.
3.The teacher often asks him to do his homework alone.
4.Can students answer these questions?

1.Is his homework done in the evening?
2.Sixteen-year-olds should be allowed to study with their friends by us
3.He is often asked to do his homework alone by the teacher.
4.Can these questions be answered by the students?