阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
The True Story of Treasure Island
It was always thought that Treasure Island was the product of Robert Louis Stevenson's imagination.1，recent research has found the true story of this exciting work.
Stevenson, a Scotsman, had lived2for many years in 1881 he returned to Scotland for a3. With him were his American wife Fanny and his son4.
Each morning Stevenson would take them out for a long5over the hills. They had been6this for several days before the weather suddenly took a turn for the worse, Kept indoors by the heavy rain. Lloyd felt the days7. To keep the boy happy Robert asked the boy to do some8.
One morning, the boy came to Robert with a beautiful map of an island. Robert9that the boy had drawn a large cross in the middle of10. "What's that?" he asked "That's the11treasure "said the boy Robert suddenly12 something of an adventure story in the boy's13While the rain was pouring, Robert sat down by the fire to write a story. He would make the14a twelve-year-old boy just like Lloyd.  But who would he the pirate（海盗）?
Robert had a good friend named Henley, who walked around with the15of a wooden leg. Robert had always wanted to16such a man in a story17Long John Silver the pirate with a wooden leg, was18.
So thanks to a19.September in Scotland a friend with a wooden leg and the imagination of a twelve-year-old boy we have one of the greatest20

1．	A． However B． Therefore C． Besides D． Finally

2．	A． alone B． next door C． at home D． abroad

3．	A． meeting B． story C． holiday D． jib

4．	A． Lloyd B． Robert C． Henley D． John

5．	A． talk B． rest C． walk D． game

6．	A． attempting B． missing C． planning D． enjoying

7．	A． quiet B． dull C． busy D． cold

8．	A． cleaning B． writing C． drawing D． exercising

9．	A． doubted B． noticed C． decided D． recognized

10．	A． the sea B． the house C． Scotland D． the island

11．	A． forgotten B． buried C． discovered D． unexpected

12．	A． saw B． drew C． made D． learned

13．	A． book B． reply C． picture D． mind

14．	A． star B． hero C． writer D． child

15．	A． help B． problem C． use D． bottom

16．	A． praise B． produce C． include D． accept

17．	A． Yet B． Also C． But D． Thus

18．	A． read B． born C． hired D． written

19．	A． rainy B． sunny C． cool D． windy

20．	A． news B． love C． real-life D． adventure