was in danger, a bright ideasuddenly ____ to me.

16. The story that follows _____ two famous characters of the Rocky Mountain gold rush days.

The school _____you visited yesterday is the place ____I once learned .

When my parents were young, they had to ________ several miles every day to school since they had no money to buy a bike.[ ]

____ for London on businessupon my arrival, so I didn’t see him.