Afarmeronceorganizedacompetitionbetweenhisdogandhisrabbit.Hedugaholeinoneofhisbiggestfields,andhidacarrotandaboneinit.Hewantedtosee___which__animalwouldfindthemfirst. 　　一位农夫曾为他的狗和兔子组织一场比赛.他在他最大的一块地里挖了洞,并在洞里藏了一个胡萝卜和一块骨头.他想知道哪个动物会先找到它们. 　　x09The___cheerful___(cheer)andoptimisticrabbitthrewhimselfintolookingforthecarrot,___digging___(dig)hereandthere,totallyconvincedthathewouldfindit.Butthedog,aftersniffingaroundforabit,___lay___(lie)downandbegantocomplainabouthowdifficultit,wastofindoneboneinsuchabigfield. 　　快乐且乐观的兔子投入到寻找胡萝卜的工作中去,他到处挖,完全有信心他能找到胡萝卜.而那只狗四处嗅了会儿,就躺下了,开始抱怨在这么一大块地里找到一块骨头有多难. 　　x09Therabbitdug__for___hours,andwitheverynewholethedogcomplainedevenmoreabouthowdifficultthiswas,evenfortherabbit.__However___therabbitthoughtthateachholedugwasoneholelessthatneededdigging.Whentherewasnoplaceinthewholefield__left__(leave)todig,therabbitdugatunnelrightto__where___thedoghadbeenlyingallthetime.Therehefoundthecarrotandthebone. 　　兔子挖了有几个小时,随着不断挖出的洞,狗愈发的抱怨这有多难,甚至抱怨起兔子.而兔子则认为挖出一个洞,那么需要挖的洞就少一个.当整个地里没有地方可以挖洞时,兔子就挖了个坑道直通狗一直躺着的地方.在那他找到了胡萝卜和骨头. 　　x09Thisishowthedoglostthegame.Hehadcometo___the___rightplaceattheverybeginningbutfailedtofindthebone__because__heonlycomplainedanddidn'ttryatall. 　　狗就这样输了这场比赛.一开始他来到了正确的地点,但是没找到骨头,于是他只是抱怨,却根本没有尝试.

　　解释哪十个空，越详细越好。谢谢