Having failed in many attempts the bird managed to escape from the cage.A. suddenlyB. nat

问题补充：

Having failed in many attempts,the bird managed to escape from the cage.

A. suddenly

B. naturally

C. immediately

D. eventually

答案：

A. suddenly

B. naturally

C. immediately

(答案→)D. eventually

解析：考查副词的辨析。suddenly突然地；naturally自然地，天生地；immediately马上，立即；eventually最后，终于。根据句意可知选D项。