The letter sent by the bank is.
问题描述：
The letter sent by the bank is.
The letter sent by the bank is.这句中貌似是The letter which was sent by.的缩写,可是The letter sent...又不像被动形式
如果The letter has been sent by bank is.貌似这句更加正确
以上两句那句才是正确呢
答
The letter sent by the bank is
这个是对的,与The letter which was sent by一样
The letter has been sent by bank is好像不可以