She's writing letter to her parents.的句子成分划分,就是主谓宾定状补啥的.为什么 to her parents 作为动作的对象不是宾语呢？主谓宾定状补这一句竟然就全了，兄弟们你们也太给力了，都这样了不是

She's writing a letter She is not writing a letter.=She not writing a letter. she's writing a letter of her mother 里面有什么错误?请帮我改一改! she is writing a letter.(对划线部分提问） --------------- She is writing a letter now宾语是什么? she is writing a letter now.(用tomorrow改写句子) she finished writing the letter just now 改为现在完成时 she finlshed writing the letter just now 改现在完成时 She had finished writing the letter when I went in. She is writing a letter.（改为一般疑问句）_______ she _______ a letter? writing letter为什么用writing She is writing a letter.She goes to work from Monday to Friday改为一般问句 she is writing a letter to her pen pal[改为否定句}she [ ] [ ] a letter to her pen pal writing a letter是什么意思 writing a letter是什么意思 she write a letter跟she writing a lettershe is writing a lettershe was a alettershe wrote a letter区别是区别 She's visiting a letter是什么意思 she is writing a letter to her father.请问知道的朋友这句话中的a letter可以不要不?