Have you ever been to the square was built last year?A. whichB. whereC. whenD. what

问题补充：

Have you ever been to the square was built last year?

A. which

B. where

C. when

D. what

答案：

(答案→)A. which

B. where

C. when

D. what

解析：考查定语从句。先行词the square在从句中做逻辑主语，指物，故引导词用which，选A。