The project, by the Chinese engineers, was built in only two years.
A. designing
B. designed
C. to be designed
D. being designed
网友回答
A. designing
(答案→)B. designed
C. to be designed
D. being designed
解析：句意：有中国工程师设计的计划仅仅在两年内就建成了。整个句子已经有谓语动词was built，所以空格处是非谓语动词，project与design之间是被动关系，故用过去分词表被动，因为设计已经完成又表被动，故选B。