we don't know ____ Mr black will come back .为什么填when 为什么填when,我觉得从意思理解上可以天填if 为什么标准答案是when 还有请顺便告诉我选择连接代词和副词的根据,除了根据意思之外,还有什么依

We don't know where we should go.同义句改写：We don't know ____ ____ ____. I don't know when we shall start.(改为简单句) I don't know ____ ____ ____. 句型转换We don't know when we shall give a fashion show.（改为同义句）We don't know____ ____ ____ ____ ____ ____. 同义句转化 we don't know when we will have an English test.we don't know ____ ____ ____ an English test We Don T Know 歌词 We Don'T Know 歌词 We don`t know when we shall start .(改为to do 的结构） We don`t know when ____ _____.说出语法！to start we don't know when we will go on a field.(改为同义句) we don't know when ____ _____ on a field trip We don't know if we will win the match this time.保持原句意思不变We don't know ____ ______ win the match this time. We don't know how we should do it 用英语解释句子We don't know ____ _______ do it Oh,it's you. I'm sorry I ____ (don't) know you ____ (be) here. We don't know when ____(have)the football match是填has还是have? We don't know how to have a time.改同义句We don't know how to ____ _____.改have a time we don't know when___(leave) We don't know what to do. What We Don't Know 歌词 I'm new here and don't know where ____(go) I'm glad to meet you,Lucy.I ____ you____.A.don't know,have comeA.don't know,have come B.don't know,will come C.didn't know,would come选什么?为什么?