The writer was so _______ in her work that she didn’t notice him enter the room.
Geography is the study of the countries of the world and of such things ______ the land, seas, climate, towns, and population.
Late again! What’s your ______ this time?
The professor was so ______, hardly anyone came to class.
Jake’s passed his exams. We’re going out to ______.
We couldn’t understand: what could ______ his sudden change of mind?