Questões de Concurso Público UFRR 2015 para Vestibular - Seriado - Primeiro Semestre - E2

Choose the alternative which contains the correct form of the verbs to fill the gaps in the following paragraph: “The most notorious computer lifeforms ___________ the electronic viruses that ____________injected into computer networks. Like real viruses, these programs ____________ the ability to ____________ a host computer and ___________ without restraint, sometimes ______________ considerable damage.