My nephew has been to Iraq and Iran as well as all of Europe. By the time he’s t

游客2023-09-28 19

问题 My nephew has been to Iraq and Iran as well as all of Europe. By the time he’s twenty-five, he ______ almost everywhere.

选项 A、will be
B、will have been
C、would have been
D、would be

答案 B

解析 by the time常和完成时连用。此处表示将来，故用将来完成时。

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