His uncle went abroad in 2010, and __________ since.
A．had not been heard ofB．has not been heard of
C．had not heard ofD．has not heard of
B
    
試題分析:句意：他叔叔在2010年出國，從那以后就沒了音訊。句中出現(xiàn)的since是現(xiàn)在完成時(shí)態(tài)的標(biāo)志詞，根據(jù)句意判斷his uncle和hear of是被動(dòng)關(guān)系，故答案選B。
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