问题补充:
The stadium by workers now will be finished by the end of .
A. to build
B. built
C. to be built
D. being built
答案:
A. to build
B. built
C. to be built
(答案→)D. being built
解析:本题考查是非谓语动词。这句话用完整的句子表达应该是 “The stadium that is being built by workers now will be finished by the end of …”,因此在保留非谓语形式应是being built。