题目内容

His sister left home in 1998, and_______ ever since.
A．had not been heard ofB．has not been heard of
C．had not heard ofD．has not heard of
B
考察时态语态。根据句意可知，sister与hear of之间是被动关系，根据since可知，要用现在完成时
句意为，他的姐姐在1998年离开了家，并且自从那时就没有她的消息了
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