他是个梦想家，整天幻想着成为著名歌手而不是完成作业。

He's such a ___dreamer, always fantasizing about becoming a famous singer instead of doing his homework.

她是个充满创意的梦想家，总是提出改善社区的新点子。

She's a creative ___dreamer who always comes up with new ideas to improve the neighborhood.