初中英语一道Li Ming had never flown to Beijing before he was six.（保持句意）When Li Ming was six,he went to Beijing by air————（填四空）
问题描述：
初中英语一道
Li Ming had never flown to Beijing before he was six.（保持句意）
When Li Ming was six,he went to Beijing by air————（填四空）
答
猜一个..for the first time
答
for the first time