I don't know when we would start.中would 为什么不能用will

I don’t know when we shall start the work. I don't know when we shall start.(改为简单句) I don't know ____ ____ ____. I don't know when we should leave for Nanjing.I don't know when______ _________ __________Nanjing I don't know when ( ) famous I don't know when we shall shart the work.(保持原句意思）I don't know when _____ _____ the work. I don't know when we shall meet again .(改为简单句）I don't know when —— —— —— again . I don't know when we would start.中would 为什么不能用will I don't know when leave 还是I don't know when to leaf we don't know when we'll start.(改为简单句)we don't know when （） （）. I don't know when we will leave the city.(同义句） I don't know（ ） （ ） （ ）the city. we don't know when ______ (start)填词, I don't know when I have been loving We don't know when we shall leave for Nanjing.We don't know ______ _______ ________for Nanjing. 改错 I don’t know when will they come 英语翻译I don't know when( )for Shanghai.(leave) when it left scars can heal~i don't know~ But I don't know when he---------(go to bed) i don’t know ,either那么,we don’t know ,neither