(EEAR CFS 1/2018) - QUESTÃO

Human's Best Friend 

We know that dogs are human's best friends. They love us

and we love them. However, we're not so sure where they

came from. Many scientists think they came from wolves

15,000 years ago. Although wolves are wild and dogs are

tame, they're still a lot alike. Both wag their tails when happy

and put their tails between their legs when scared. 

Dogs are easy to educate. Well-educated dogs are

sometimes used as watchdogs. A watchdog can stop a

creature that is five to six times bigger. It is interesting,

though, that these dogs, which can become terrifyingly wild

in times of danger, pose no harm to their owners. In the face

of a threat, they put their lives in danger to save their

owners. (Adapted from http://www.grammarbank.com) 

 Choose the correct alternative to have the passive voice from the sentence, in bold type, in the text. 

Their lives _______ in danger to save their owners. 

a) is put 

b) are put 

c) was put 

d) were put 

A voz passiva em Inglês apresenta a seguinte estrutura: verbo TO BE do tempo verbal correspondente da voz ativa + passado particípio do verbo principal. Usamos a voz passiva quando a ação é mais importante que o agente da ação. Na frase ativa (active sentence) analisou-se que o verbo principal “PUT” está no presente simples e que o sujeito da oração ativa está no plural. Logo, na frase passiva (passive sentence) teremos verto TO BE do presente simples no plural (are) + passado particípio do verbo principal (put).