Перевести в косвенную речь: "were are the children's books" - she asked "they are over there on thouse lower shelves" - she told her "would you like me to help you find a nice one with a lot pictures? " -asked she "no , thank you" , she said. " i'm sure i can manage"

She asked where the children's books were.

She told her that they were over there on those lower shelves.

She asked me if I would like to help her find a nice one with a lot of pictures.

На счет последнего не уверенна, так что не буду рисковать)

2/she told her that they were over there on thouse lower shelves

 4/ i was sure i can manage

1) she asked were were the children's book

 не уверена конечно, ну всё же думаю