The hurricane and the damage caused have done much harm to the United States.
A. that
B. it
C. what
D. when
网友回答
A. that
(答案→)B. it
C. what
D. when
解析：考查定语从句。本题较难，定语从句的先行词是the damage,动词it指代上文出现的名称The hurricane在句中做主语。在damage后面省略了that/which作为动词caused的宾语。句意：飓风和飓风导致的破坏已经给美国带来了很大的破坏。故B正确。