His letter,_____ to the wrong number,reached me late

问题描述:

His letter,_____ to the wrong number,reached me late
a.having been addressed b.to have been addressed
c.being addressed
选A,为什么是用having...的形式?

这句话完整的说是这样His letter,which has been addressed to the wrong number, reached me later.这里是用什么来替代定语从句的问题,应为是已经完成的动作,而B中的TO 是不定式,他用在这里表达的意思是将要被寄错,...