His uncle went abroad in and since.A. had not been heard ofB. has not been heard o

问题补充：

His uncle went abroad in , and since.

A. had not been heard of

B. has not been heard of

C. had not heard of

D. has not heard of

答案：

A. had not been heard of

(答案→)B. has not been heard of

C. had not heard of

D. has not heard of

解析：

试题分析:句意：他叔叔在出国，从那以后就没了音讯。句中出现的since是现在完成时态的标志词，根据句意判断his uncle和hear of是被动关系，故答案选B。