已知马蛔虫体细胞内有2对染色体，如图示能正确表达马蛔虫生殖细胞中染色体组成的是（　　）

根据句意及首字母完成短文内容。
     The police in Washington were looking for a thief. His name was John. As last they c____  him. But while they were taking p____  of him from the front, from the back, with a hat, without a hat, he suddenly attacked the policemen and r____  away. Then a week later the telephone r____  in the police station, and a man said, "You're l____ for John, aren't you?"
     "Yes."  
     "Well, he l____  here for New York an hour ago."
     New York was f____  away form Washington. The city police at once sent four different p____  of the thief to the police in New York.
     Less than twelve hours l____  they got a telephone call form the police in New York, "We have caught three of them, " they said h____ , "and we will catch the left fourth this evening, we think!"

—There _______ World Cup in Brazil in 2014. It will be played from June 12 to July 13.

—Yeah!

氯化物在工业生产、日常生活中应用都非常广泛．某学习小组为探究一些实用性很强的氯化物，进行了一系列的资料查询与具体实验．