we wrote a letter to ____ had helped us.A whoever B whomever

we wrote a letter to ____ had helped us.A whoever B whomever we wrote a letter of thanks to--had helped us 解释一下为什么填whoever?谢 he wrote a letter to me last year.对wrote a letter to me 划线提问 分句子的主语和谓语we wrote a letter of thanks to whoever had helped us. peter wrote a letter to a penfriend in china 翻译 that night he wrote a letter to a newspaper. he wrote a letter to his friend改为否定句 He wrote a letter of ________ (invite) to his friends. she wrote a letter to me last year.(wrote a letter to me 划线,划线部分提问） Mary wrote a letter to me last week.对划线部分提问,划线部分是wrote a letter to me i wrote a letter.passive they wrote a letter of thanks,which we all felt -A be B is C to be D deing 选什么为什么答案是c they wrote a letter of thanks,which we all felt --the highest praiseA be B is C to be D deing 选什么为什么答案是c She is the woman.I wrote a letter to her.改为定语从句变成定语从句是：She is the woman I wrote a letter to.可以改为：She is the woman to whom I wrote a letter. who wrote the letter to you?是什么意思? They wrote a letter to me (last week)对括号部分提问（ ）（）.they（）a letter to you A:___you __ a letter B ：Yes ,I have ___a letter to my mum .A Did ,write,wrote B Do,write,wrote I wrote a letter with a pen.