He has devoted most of his time and energy _______ a cure for the disease.
At the mountaintop_______, where five ancient statues stand.
—Julia and Colin ended their relationship last year.—what made their marriage______?
The young writer’s first book ______next month is based on a real person and event.
When the farmers were asked to leave their hometown, they said they would rather______ than ______ their homes.
Little______ about her own safety, though she was in great danger herself.