2. 外语
  3. AIDs is said______the number-one killer of both men and women over the past few years in that region. （2002年考试真题）

AIDs is said______the number-one killer of both men and women over the past few years in that region. （2002年考试真题）

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问题 AIDs is said______the number-one killer of both men and women over the past few years in that region. （2002年考试真题）
选项 A、being
B、to be
C、to have been
D、having been
答案C
解析 本题考点为不定式作主语补足语。选用to have done是根据时间状语over the past few years。
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