1. Hippopotamuses are one of the world's most ______ animals and will attack anything they see as a threat.

2. The police are looking for ______ to the serious road accident last Friday.

3. The ice cream ______ quickly under the hot sun.

4. He gobbled up his food quickly as he was ______.

5. A ______ of whales appeared right next to our boat when we went whale-watching.

6. Joshua ______ the new job even though he had not done it before.