When ____,the museum will be open to the public next year.(A) completed (B) being completed我想选B,因为我记得After后面就要being的,但是答案上面是 A,

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When ____,the museum will be open to the public next year.(A) completed (B) being completed我想选B,因为我记得After后面就要being的,但是答案上面是 A,

When ____,the museum will be open to the public next year.(A) completed (B) being completed我想选B,因为我记得After后面就要being的,但是答案上面是 A,
When ____,the museum will be open to the public next year.
(A) completed (B) being completed
我想选B,因为我记得After后面就要being的,但是答案上面是 A,

When ____,the museum will be open to the public next year.(A) completed (B) being completed我想选B,因为我记得After后面就要being的,但是答案上面是 A,
After是介词所以后面是名词,when后引导的是时间状语从句,being completed表示正在被完成,completed是省略,补全了是when it is completed,the……

答案是对的,逗号前的句子主语与逗号后的句子的主语相同,被动的"be"应省略。

When completed = When( the museum is ) completed. 这里when从句的动词与逻辑主语是被动关系。 being这里不需要,因为不表示进行时态,主将从现么。

哪里有after啊?