第二部分 句子翻译：(共20空，每空0.5分，满分10分)
他声称看见过一个黑黑的、圆圆的生物在水中快速移动。
He _________ ____________ ____________ seen a round black creature ____________     quickly through the water.
英国人在美国人省略介词的地方使用介词，这使得英国人和美国人在相互理解上稍微有  些困难。
The British use prepositions ____________ Americans sometimes ____________ them,    which ____________ ____________ a little harder for British people and Americans to    understand each other.
他自愿去引导交通，因为他曾经近距离遭遇过死亡。
He ____________ to direct the traffic because he once had a ____________ ____________   ____________ death.
下定决心要去南美洲挣钱发财，马克·吐温出发去了新奥尔良，在那儿他过着一种冒险  的生活。
__________ to make his ____________ in South America, Mark Twain set off for New    Orleans,____________ he led an ____________ life.
美国人提出了抗议，最终这位美国选手被宣布为了胜利者。
The Americans ____________ and in the end the American runner was ____________ ____________ ____________.