A new technique （ ）, the output as a whole increased by 20 percent.

It was in Johnson’s hotel （ ） the business meeting was held last year.

If Peter had given up his part-time job, he （ ） the final exam.

They always give their vacant seats to （ ） comes first.

Born into a family with three brothers, David was （ ） to value the sense of sharing.

Our daughter didn’t know what to （ ） when she first entered the university, as she hadn’t make up her mind about her future.

Some cities have passed laws that allow coal and oil_____only if their sulfur content is low.

Today, household chores have been made much easier by electrical （ ）.

Ten minutes _____ an hour when one is expecting a phone call.

I got so tired that I just couldn’t move a step _____.

Such problems （ ） air pollution and traffic jams are becoming more and more serious in some big cities.

（ ） you do, you should put your heart into it.