题目内容
【题目】你学骑自行车时几岁了？
【答案】How old were you when you learned to ride a bike?
【解析】此句是when引导的时间状语从句。learn to do sth.学习做某事；ride a bike骑自行车，根据汉语提示判断，时态为一般过去时态，所以答案是How old were you when you learned to ride a bike?
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题目内容
【题目】你学骑自行车时几岁了？
【答案】How old were you when you learned to ride a bike?
【解析】此句是when引导的时间状语从句。learn to do sth.学习做某事；ride a bike骑自行车，根据汉语提示判断，时态为一般过去时态，所以答案是How old were you when you learned to ride a bike?