As a result of the earthquake two-thirds of the buildings in the area.A. need repairingB.

问题补充：

As a result of the earthquake, two-thirds of the buildings in the area.

A. need repairing

B. needs repairing

C. needs to be repaired

D. need to repair

答案：

(答案→)A. need repairing

B. needs repairing

C. needs to be repaired

D. need to repair

解析：考查主谓一致。分数、百分数 + 复数名词，谓语动词用复数，need doing = need to be done，根据句意选择A。