单选题
______, the speaker interrupted his lecture.
A、
His voice was drowned by the noise
B、
His voice being drowned by the noise
C、
Drowned by the noise
D、
His voice drowned by the noise
【正确答案】
D
【答案解析】
独立主格结构。voice与drown被动关系，故用过去分词drowned
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