Which option completes the paragraph below correctly?
Speak, FIDO!
imagine you're out for a walk with your family when a strange do approaches. The dog isn't agrressiv, but it seems _______ somenthing because it nudges you with its, snourt and barks. What you don't know is that this dog is trained ______ a person with a medical condition. Around the corner, the dog's owner has collapsed, and the dog instinctively runs off _______ help. That's you! But how can the dog make you ______ what's wrong?
(Adapted from http://www.timeforkids.com.br)