问题
选择题
His uncle went abroad in 2010, 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
答案：B
题目分析:句意：他叔叔在2010年出国，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。