单选题 The terrible disease is said ______the number-one killer of both men and women over the past few years in that region.

【正确答案】 C

【答案解析】解析：本题考查非谓语动词。be said to do是固定结构，由句中的时间状语over the past few years可知，动作发生在谓语动作之前，故应用动词不定式的完成式作宾语，故答案为[C]项。