sentence: I consider that something should be done in order to balance the pros and cons of having mobile phones present in schools , because , firstly , students are the ones who must be present and , what is more , their learning process also must be there .
modified: I consider that something should be done in order to balance pros and cons of having mobile phones present at schools because , firstly , students are the ones who must be present and , what is more , their learning process also must be there .
transformation: DET, PREP, PUNCT