When he was ____,John went to the United Ststes.a、in his twenties b 、on his twenty

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When he was ____,John went to the United Ststes.a、in his twenties b 、on his twenty
When he was ____,John went to the United Ststes.a、in his twenties b 、on his twenty

When he was ____,John went to the United Ststes.a、in his twenties b 、on his twenty
in his twenties 在某人的二十来岁的时候,这个词组很重要,高考肯定考的.

in his twenties
当约翰二十几岁时,他去了美国.
解释: "in + one's + 整十数的复数形式': 是固定搭配,表示"在某人几十时" .

in his twenties
有不明白的地方再问哟,祝你学习进步,更上一层楼! (*^__^*)

选择A。在某人多少岁时,介词很重要,如果是用in,数词要用复数。但如果是at the age of,就要用单数