The biggest room is this building_____used as .A.is used to be B._英语解答

The biggest room is this building_____used as .A.is used to be B.is used to C.used to D.used to

人气：475 ℃　时间：2020-05-02 03:02:36

解答

应该是 used to be 因为是做后置定语修饰 this building A 错在多用了系动词与前面的is 矛盾
B错 C和D 怎么答案一样啊