EsPCEx
EsPCEx Concurso de Admissão (Escola Preparatória de Cadetes do Exército, Brazil)
Lingua InglesaEnglish
Exam overviewPractice session
Choose the alternative that correctly completes the sentence with the appropriate verb tenses: "The Brazilian Armed Forces __________ their tactical communication systems significantly over the last decade, whereas back in 2012 they still __________ on legacy analog protocols."
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