how long___ you ____this pen?A have had B did buy

问题描述:

how long___ you ____this pen?A have had B did buy
回答是 ----only one day.
可是回答里的时间没有for引导

问题补充:回答是 ----only one day.可是回答里的时间没有for引导当然可以没有for你拥有这只钢笔多久了?我给的例子是完整的回答:I have had this pen for ten years.我已经拥有它十年了.你可以简单回答成:十年了(for...