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What is the correct option to complete the paragraph below?
Robots and writers
This article wasn't written by a robot - but the next one you read ______ have been. Robots are already in our midst, and you ______ be surprised what they ______ do. Robots are reporting on earthquakes, sports, and writing huge numbers of Wikipedia articles. Odds are pretty good you've already read articles written entirely by robots without realizing it.
(Adapted from https: / / www. makeuseof. com)
Robots and writers
This article wasn't written by a robot - but the next one you read ______ have been. Robots are already in our midst, and you ______ be surprised what they ______ do. Robots are reporting on earthquakes, sports, and writing huge numbers of Wikipedia articles. Odds are pretty good you've already read articles written entirely by robots without realizing it.
(Adapted from https: / / www. makeuseof. com)
Resolução comentada
Might / might / can.
'The next one you read might have been (written by a robot)' expressa possibilidade passada. 'You might be surprised' expressa possibilidade. 'What they can do' expressa capacidade.
Análise das alternativas
'Can't have been' indicaria impossibilidade e contradiz o sentido. 'Should' e 'could' não se encaixam ao sentido de possibilidade e capacidade nas três lacunas.
Referência: Modal verbs.
Resolução comentada do VaiConcursos.