At the school there're 2 students conversations. they talk about uncertainty.
roxy : tomorrow we'll go to amerika 
angel : what ..? is it true ? bu i'm doubt about it..
roxy : yes me too. But i heard that informations from other student
angel : i can't trust you. but i'll ask someone else about that !
roxy : i think that the good idea ..
angel : ok c'mon we should to tell our teacher about it !
roxy : ok.. lets go