Complete the sentences

1. I've always been fascinated by this optical
   [illusion|fantasy|dreams].
2. They've just moved to a small house at the seaside and they're living a
   [illusions|fantasy|dream].
3. He can't be serious. His plan is just a flight of
   [illusions|fantasy|dream].
4. Studying at Harvard is his
   [illusion|fantasies|dream] come true.
5. I'm under no
   [illusion|fantasy|dreams] about their honesty.
6. Mirrors tend to make an
   [illusion|fantasy|dream] of space in small rooms.
7. A perfect wedding is usually just a
   [illusion|fantasy|dreams].