AIDS is said ______ the number-one killer of both men and women over the past few years in that region.

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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.

选项 A、being
B、to be
C、to have been
D、having been

答案C

解析

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专业英语四级

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AIDS is said ______ the number-one killer of both men and women over the past few years in that region.

专业英语四级

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bothsidesaccepttheagreementalastingpeacebeestablishedinthisregion.