The people had been damaged by the flood were given help by the Red Cross. A. all whose

问题补充：

The people, had been damaged by the flood, were given help by the Red Cross.

A. all whose homes

B. all of whose homes

C. all their homes

D. all of their homes

答案：

A. all whose homes

(答案→)B. all of whose homes

C. all their homes

D. all of their homes

解析：考察非限制性定语从句。本题定语从句的先行词是the People,关系代词whose指代先行词在句中作为名词homes的定语。Whose homes作为一个整体充当介词of的宾语。句意：在地震中家都被毁掉的那些人接受了红十字的帮助。故B正确。