You were stupid to try climbing up there. You ______ yourself.
His sister left home in 1998, and ______ since.
The water ____ cool when I jumped into the pool for morning exercise.
The water supply has been cut off temporarily because the workers ____ one of the main pipes.
The students ____ busily when Miss Brown went to get a book she_____ in the office.
The fact that so many people still smoke in public places _____ that we may need to do more to raise awareness of the risks of smoking.