She is writing a letter to a friend of hers,______ him to attend the party.A.to invite B.inviting填哪一个啊,______ 处作什么语?to do可以用作补足语,而doing不可以谁能解释一下怎么辨别补足语啊,举个例子也可以.

She is not writing a letter.=She not writing a letter. 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 history of her family. she is writing a letter now.(用tomorrow改写句子) She is writing a report.改为一般疑问句. What's the meaning of writing home?What about She is a writing home? She is writing a letter.（改为一般疑问句）_______ she _______ a letter? She's writing a letter She is writing a letter.She goes to work from Monday to Friday改为一般问句 she is writing a report to her brother 对writing a report to her brother 部分提问 She ()an e-mail to her friend in the study.a:writes.b:is writing.c:writing.d:write. 这个句子结构有问题吧 23.She's upstairs_______letters.A.writes B.is writing C.write D.writing 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 is writing to her parents 中文 she is writing ___ e-mail. Look How ___(care)she is writing a,She,on,writing,letter,paper,is,piece,of,a 英语连词成句