完形填空。 If I Were a Boy Again If I were a boy again.I would practice perseverance(毅力)more often,and never give up a thing.If we want__1__,we must conquer(征服)darkness.Perseverance can sometimes __2__genius in its results.'There are only two__3__,'says a proverb,'Who can surmount (到……顶)the pyramids-the eagle and the snail.' If I were a boy again,I would school myself into a habit of__4__；I would let nothing come between me and the subject in hand.I would remember that a good skater never tries to skate in two__5__at once. The habit of attention becomes part of our__6__,if we begin early enough.I often hear grownup people say,'I could not__7__attention to the book,although I wished to do so'． The reason is that the habit was not__8__in youth. If I were to__9__my life again,I would pay more attention to the cultivation(培养)of the__10__.It takes a little hard work at first to remember things accurately,but memory soon__11__itself,and gives very little trouble.It only needs early__12__to become a power. If I were a boy__13__,I'd cultivate courage.Nothing is so mild and gentle as courage； nothing is so cruel and pitiless as cowardice(怯懦)．Life is very much like a__14__:If you smile upon it,it smiles back upon you；but if you frown(皱眉)and look doubtful on it,you will get a__15__look in return. Finally,if I were a boy again,I would look on the cheerful side.I'd still try harder to make others happy. (     )1．A.success (     )2．A.explore (     )3．A.creatures (     )4．A.attention (     )5．A.ways (     )6．A.perseverance (     )7．A.focus (     )8．A.formed (     )9．A.enjoy (     )10．A.lifestyle (     )11．A.loses (     )12．A.habit (     )13．A.over again (     )14．A.fire (     )15．A.familiar B．hope B．equal B．birds B．studies B．feet B．result B．gather B．got B．plan B．memory B．helps B．education B．over there B．song B．similar C．light C．overcome C．persons C．customs C．shoes C．genius C．give C．schooled C．live C．personality C．wastes C．cultivation C．over and over C．poem C．different D．freedom D．bury D．heroes D．mind D．directions D．life D．pay D．gained D．consider D．perseverance D．takes D．courage D．again and again D．mirror D．bad