---- Look! Everything here is under construction.
---- Oh, has the building once for exhibition been pulled down, too?
A. having been built
B. being built
C. to be built
D. built
网友回答
A. having been built
B. being built
C. to be built
(答案→)D. built
解析：这题考查过去分词做定语的用法：the building和build是被动关系，因为是已经建成了，所以用过去分词做定语。选D。句意是：--看这儿的一切都在建设。--为展览建的大楼也被推倒了吗？选D。