It’s raining heavily. _________, we have to stay at home.

It is _____ colder than yesterday; put on more clothes or you will catch a cold. 

He devoted himself ________ to his research work, having no time to play.

—I’ve heard a hurricane had struck your hometown. —Yes, it was terrible, but ____, no one was killed.

---- I was riding along the street and all of a sudden, a car cut in and knocked me down. ---- You can never be _______ careful in the street.