A new museum is being built in our city and it’ll be accessible to the citizens when next

问题补充：

A new museum is being built in our city and it’ll be accessible to the citizens when next year.

A. completing

B. is completed

C. to be completed

D. completed

答案：

A. completing

B. is completed

C. to be completed

(答案→)D. completed

解析：考查非谓语动词。it指代的是the new museum，也是complete的逻辑主语，且是被动关系，故应用过去分词表被动。When completed=When it is completed.