Until then, his family ______ from him for six months.
A.didn' t hear
B.hasn' t been hearing
C.hasn' t heard
D.hadn' t heard
答案:D
解析:本題考查時(shí)態(tài)。題干中有時(shí)間狀語(yǔ)until then提示時(shí)要用過(guò)去完成時(shí)態(tài),表示過(guò)去已經(jīng)發(fā)生的事情。
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