Passive voice: 1.people will forget it very soon. 2. they will translate this work next year. 3. they will tell you when to come. 4. where will they build a new library? 5. someone will ask him about it.

1 It will be forgotten by people very soon.
2 This work will be translated by them next year.
3 You will be told by them when to come.
4 Where will a new library be built by them?
5 He will be asked by someone about it.