______ on an airplane before, the old lady felt very nervous.A、Never having been

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问题 ______ on an airplane before, the old lady felt very nervous.

选项 A、Never having been
B、Having never been
C、Never to be
D、Never being

答案 A

解析分词短语作状语，短语中的动词先于主句的谓语动词发生，所以用完成时。注意否定词never的位置。

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