What enables some people to get big creative breakthroughs while others only get small and non-creative breakdowns, blaming themselves and society? Are some people "gifted"? Are there other factors______21_____ work--factors that we have more control over than we think? While nobody can deny the _____22_____ that some people seem to be blessed with particular creativity, research shows that anyone can _____23_____ their chances of coming up with new and original ideas _____24_____ they would only engage themselves more in the process of 25 . It&39; s the old Thomas Edison thing about "discovery _____26_____ 99 percent perspiration (汗水) and 1 percent inspiration. " _____27_____ , the studies prove this:great creative breakthroughs usually happen only _____28_____ intense periods of struggle. It is sustained effort towards a specific goal _____29_____eventually prepares for great creative insights. This kind of sustained effort does not always_____30_____ immediate results, a fact that not only separates the innovators (革新者) from non-innovators, but 31 leads some people to conclude that it is just not _____32_____ for them. "Maybe I should have gone to medical school like my mother wanted," they wonder when the breakthrough is _____33_____ to be found. Alas, one forgets during inevitable encounters _____34_____self-doubt,that the big surprise is never _____35_____. Indeed,it can happen at any time and place. 21_______ A.to B.in C.at D.by 22A.issue B.problem C.reason D.fact 23A.miss B.reduce C.increase D.lose 24A.because B.if C.while D.whether 25A.creation B.practice C.production D.achievement 26A.being B.be C.was D.were 27A.Sooner or later B.Some day or other C.Every now and then D.Time and again 28A.beyond B.after C.above D.through 29A.that B.who C.what D.as 30A.create B.produce C.inspire D.encourage 31A.too B.once C.again D.also 32A.good B.difficult C.possible D.stupid 33A.anywhere B.everywhere C.somewhere D.nowhere 34A.against B.across C.with D.into 35A.far away B.used up C.cleared off D.near by