Choose the correct word

1. The artists have created a
   [unique|talented] way of making music without instruments.
2. The popular band was in
   [demand|project] by their fans.
3. The kind of melody the ice instruments make during a concert is up to
   [nature|environment].
4. Ice instruments must be kept in a
   [deep|heavy] freeze or they will melt.
5. I never
   [expected|waited] to hear you say such a thing!