6. I have never visited this museum before. This is ____________________________________________________________ 7. I think that no city in the world is more beautiful than Paris. - I think Paris __________________________________________________________ 8. She has never seen a more unusual festival than this. This is the most ___________________________________________________ 9. This question is difficult to understand. It’s _______________________________________________________________ 10. He hasn’t chatted with his classmates through the internet for ages. It’s ages ___________________________________________________________