Употребите следующие предложения в страдательном залоге: 1. he has improved his pronunciation. 2. jane invited me to the concert. 3. i’ll do the work in the evening. 4. he opened the door. 5. they are discussing the problem now.

1  his pronunciation.has been improved.
2  I was invited to the concert by Jane
3 the work will be done in the evening.
4  the door was  opened by him.
5 the problem is being discussed  now.