According to text 1, what is the primary reason Brazil implemented the cellphone ban in Brazilian schools recently?

Based on text 1, what exceptions exist in Brazil's cellphone ban:

According to the text 1, it is possible to infer that:

Considering text 1 and its genre, we can correctly classify it as:

In the sentence “Brazil joins several countries that have banned the personal use of cellphones in schools”, the underlined word (“joins”) ends with an “s” for the same reason as in:

According to text 2, how does the Communicative Approach view language learning:

In the excerpt extracted from text 2, which says that “the Communicative Approach aimed at developing the learner’s competence to communicate in the target language”, the underlined word (competence) could be INCORRECTLY replaced by:

In the sentence “This approach started in the 70s and became prominent as it proposed an alternative to the then ubiquitous systems-oriented approaches, such as the Audiolingual method” (text 2), the word “ubiquitous” can be correctly classified as:

Choose the alternative that correctly mention three discourse markers extracted from text 2:

Considering the National Curriculum Parameters (PCNs) for Foreign Language Teaching in Brazil, some methods seem to be good options to develop students' communicative competence by engaging them in meaningful interactions that reflect their real-life situations. Based on this assertion, choose the alternative that definitely CANNOT suit the context mentioned above: