问题
选择题
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
答案：D
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.