With his work completed,the business man stepped back to his seat,feeling pleasedhe was a man of action.

________ confidence resulted in his failure in the interview.

It’s the _______ that caused the big forestfire. A young man dropped it carelessly at picnic.

As is _______ known, a good knowledge of basic physics helps us better understand natural phynomenons

periment turned out to be a completefailure, _____ wasn’t _____ they expected．