| A | B |
| fiery | After the ___ building has cooled, rescue dogs may go inside to help |
| within | ___ seconds, the helper dog finds and pushes the right button. |
| horrifying | The dog does not find the deep snow ___ or scary. |
| ancient | __ art from Roman times shows people kept dogs as pets. |
| mysterious | The dog is sniffing at a ___ package to help guess what it holds. |
| emergency | A rescue dog can help an __ team find trapped people quickly. |
| panicking | Herding dogs can help guild scared or ___ animals. |
| scientific | People do ___ research to create new medicines that can help sick dogs. |
| prehistoric | Dogs helped people hunt in __ times. |
| immediately | As soon as the light changes, the dog __ walks forward. |