where has this letter come from能把has换成is吗?

where has this letter come from能把has换成is吗? 英语翻译This is my favorite English song,it has come from one fi 看到一个句子,where has she come from?为什么用has 呢? He has been back to shanghai for one day.to能换成from吗? China has provided more profit where this scientist is conce it is 40 metres long中is能换成has吗?为什么? This letter is from ___ Where does she come from?里面这个where可以换成what吗? 1.Where （ ）she come from?A.doB.doesC.amD.is2.（ ）of us has an The letter he has been waiting ____ is from his former head Tom is resding letter now,he has heard from you two days ago 英语翻译One response to this has come from the USA,so often the