【题目】Three-fourths of the buildings _________.
A.were destroyed
B.is destroyed
C.was destroyed
D.has been destroyed

【答案】A
【解析】考查谓语动词。句意：四分之三的建筑被毁坏了。主语是buildings，虽然有分数修饰，但是谓语还是由名词决定；所以谓语动词用复数，故选A。