now judy is using the same mobile phone __was used by Alice two days ago.

问题描述:

now judy is using the same mobile phone __was used by Alice two days ago.
为什么用as

as which
前面有the same,后面要用as.注意:前后所说的手机并不是同一台,仅是同一型号.因此不能用which/that.
希望能提供帮助.