AIDS is said_____the No. 1 killer of human kind over the past few years.A、being

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问题 AIDS is said_____the No. 1 killer of human kind over the past few years.

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

答案 C

解析语法类试题。be said to be表示“据说目前是”，be said to have been表示“据说过去已经是”。

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AIDSissaid_____theNo.1killerofhumankindoverthepastfewyears.A、being