when___,the building will be the tallest one in Asia

问题描述:

when___,the building will be the tallest one in Asia
A,completing B,completed C being completed Dto be completed
问一下为什么不选D项

你好,很高兴能够在这里回答你的问题,这道题的正确答案应该为:
B
when ____completed__(competion),--------分词结构
==when it is completed / has been copleted --------时间状语从句
不好意思,将来时不是用不定式吗,我问D项这个是做时间状语当建成的时候,主语是the building,所以用被动形式的过去分词形式哦,对了,时间状语用现在时表将来,我忘了