This is the ____ piano on which the composer created some of his greatest works.

To keep ______, we must do more out-of-door exercises. 

Tom is _______ to miss the early bus because he got up late.

The police always take advantage of dogs’ ____ sense of smell to search for something.

 —Were you all frightened at the sound of the fire alarm?— No. Everyone stayed _______ and obeyed the police.