阅读下面文段,回答以下问题(20分) “娘,您别送了,”我喉咙涩涩的,“天不早了,您回去吧!” “娘晓得。我儿上了大学,娘心里高兴,我儿给娘和你爹争了气。”车窗外的娘眼眶红红的,笑着说,“娘没文化,讲不出什么大道理。娘只指望我儿今后碰到什么不顺心的事要多挺一挺,咬咬牙,也就过去了……” 我记住了,娘……”我哽咽着,低下头…… 娘终于回去了,一直没有回头——我知道,娘一回头,就又舍不得走了,娘每走几步,便伸
His sister left home in 1998, and ________ since.
[ ]
A.
had not been heard of
B.
has not been heard of
C.
had not heard of
D.
has not heard of