Ответ:

1. People say unicorns live in forests far away from humans.

2. The sea monster carried the boy and took him to the bottom of the ocean.

3. The dragon frightened the people of the village when it flew down from the sky!

4. The story of Buster the giant is a very well-known legend.

5. Agnes thought of a plan to defeat the giant forever.

6. People lock their doors and stay inside when the mermaid Lara sings!

Ответ: 1 — far away; 2 — carried; 3 — frightened; 4 — legend; 5 — defeat; 6 — lock.