33. You may use room as you like ____ you clean it up afterwards.u
—I'm terribly sorry to have put you through so much trouble. —__________. I know you didn't mean to.
In face of failure, it is important to __________ a good state of mind.
How badly reform is needed was __________ recently by the rising youth crime figures.
__________ gas is needed for the increasing cars to run in the street.
1. He will never __________ though every means __________ tried already.