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______ on an airplane before, the old lady felt very nervous.A、Never having been
______ on an airplane before, the old lady felt very nervous.A、Never having been
游客
2023-09-28
15
管理
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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