They mustn't smoke.
They must talk voice low.
They don´t have to buy if or if a book.
They can ask book.
They can go boys and adults.
They mustn't running and screaming children.
They must be friendly with others.
They don't have to look all book.
They must care books.
They mustn't break books.
They don't have to go all day.
They mustn't go with animals .
They don't have to after of 18 hs.
Last week, at the book faur ...
They couldn't smoke.
They had to talk voice low.
They didn´t have to buy if or if a book.
He could ask book.
They could go boys and adults.
They couldn't running and screaming children.
They had to be friendly with others.
He didn't have to look all book.
They had to care books.
They couldn't break books.
They didn't have to go all day.
They couldn't have to go with animals.
They didn't have to after of 18 hs.
Hi, Clari! My corrections are in BLOCK LETTERS and between brackets what is not necessary:
ResponderEliminarThey must talk IN A LOW voice.
They don´t have to buy (if or if) a book.
They can ask ABOUT A book.
(They can go boys)BOYS, GIRLS and adults CAN GO.
They mustn't run(ning)OR (and) scream(ing) (children).
They must be friendly with others.
They don't have to look AT all THE bookS.
They must TAKE care OF books.
They don't have to BE PRESENT after (of 18 hs) 6 PM.
They had to talk IN A LOW voice (low).
They didn´t have to buy (if or if) a book.
He could ask FOR bookS.
(They could go)GIRLS, boys and adults COULD GO.
They couldn't run(ning and) OR scream(ing children).
He didn't have to look AT all THE bookS.
They had to TAKE care OR THE books.
They couldn't (have to) go with animals.
They didn't have to BE PRESENT after (of 18 hs) 6 PM.
Very good work, Clari!!