It is well that young men should begin at the beginning and occupy the least important positions．21  of the leading businessmen of Pittsburgh had a serious responsibility placed upon them at the very  22  of their career．They were  23  to the broom(扫帚), spending the first hours of their business lives   24 the office． And here is the basic  25  of success, the great secret:  26  your energy, thought, and capital (资本) wholly on the business in which you are  27 ．Having begun in one line, determine to fight it out on that  28 , to lead in it, adopt every  29  , have the best machinery, and know the most about it． The companies which fail are those which have 30  their capital, which means that they have scattered their brains  31  ．They have investments in this, or that, or  32  , here, there, and everywhere．“Don't put all your eggs in one basket” is all  33 , I tell you．“Put all your eggs in one basket, and then  34  that basket”．Look round you and take  35 ; men who do that do not often fail．It is easy to watch and carry the one basket．It is trying to carry too many baskets  36 breaks most eggs in this country．He who  37  three baskets must put one on his 38 , which is likely to fall down．One  39  of the American businessman is lack of concentration． Remember: put all your eggs in one basket, and watch that basket． 40  Emerson says, 'no one can cheat you out of final success but yourselves．' 21．A．None         B．Few              C．All          D．Many 22．A．beginning      B．end           C．point           D．promotion 23．A．ordered        B．promoted           C．introduced            D．stated 24．A．sweeping out   B．taking out      C．bringing out       D．picking out 25．A．inspiration     B．condition            C．plan              D．case 26．A．concentrate    B．devote             C．apply        D．bury 27．A．charged        B．engaged            C．prepared     D．done 28．A．position      B．career           C．row          D．line 29．A．improvement   B．chance           C．learning      D．rise 30．A．gathered     B．forbidden          C．got          D．scattered 31．A．also          B．either            C．neither        D．yet 32．A．one            B．the other          C．others       D．the others 33．A．apparent      B．clear            C．wrong       D．perfect 34．A．notice       B．observe            C．stare         D．watch 35．A．notice        B．comment         C．interest       D．concentration 36．A．what          B．that               C．whoever      D．whichever 37．A．brings         B．takes              C．carries       D．owns 38．A．mind         B．brain              C．head         D．hand 39．A．fault          B．advantage          C．pattern       D．model 40．A．When         B．While              C．Which       D．As