Question

изменить действительный залог на страдательныйс
1.children were learning languagees
2.they speak much of the film
3/we used this computer device
4.she will publish her article next month

Answer 1

1) children were learned 
2) they are spoken
3) we were used
4) she mill be published

Answer 2

1 Languages were being learnt by children
2The film is much spoken about by them.
3This computer device was used by us.
4 Her article will be published by her next month.