第5部分：补全短文(第46~50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容讲其分别放回原有位置，以恢复文章面貌。
Toads are Arthritis and in Pain
46-50：E B C A F
A. Toads are not built to be road runners—— they are built to sit around ponds and wet areas.
B. The task now facing the country is how to remove the toads.
C. Furthermore, they soon take over the natural habitats of Australia’s native species.
D. Toads with longer legs move faster and travel longer distances while the others are being left behind.
E. But this advantage also has a big drawback—— up to 10% of the biggest toads suffer from arthritis.
F. But arthritis didn’t slow down toads outside the laboratory the research found.
