Questão 2555692

Read the text and answer questions 31 and 32.

Human's Best Friend

1 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

5 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

10 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.