The city walls forty years ago. What a pity!A. destroyedB. destroyC. are destroyedD. were

问题补充：

The city walls forty years ago. What a pity!

A. destroyed

B. destroy

C. are destroyed

D. were destroyed

答案：

A. destroyed

B. destroy

C. are destroyed

(答案→)D. were destroyed

解析：句意：四十年前城市的墙被毁了。forty years ago四十年前，应用一般过去时，墙被毁，应用被动语态。根据题意，故选D。