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Analyze the sentence below. “We have seen in the past how...

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Q2277251
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Ano: 2018
Prova: AMEOSC - Prefeitura - Professor de Inglês - 2018

Analyze the sentence below.


“We have seen in the past how research that initially set out to tackle diseases in animals _____________________, for example, to prevent cancer in people.”


Choose the best option that completes the context.


A

[…] have helped.


B

[…] has helped.


C

[…] had helped.


D

[…] have prevented.