I didn't know when I would start.(同意句)

I didn't know when I would start.(同意句) i don't know when i should leave 同意句 I don't know when we would start.中would 为什么不能用will I didn't know when they____again. 同义句I don't know when I can start the new lesson=I don't know I don't know when I should start（同义句 ）（五分钟答出的, I don't know when I shoud start 同义句转换 I don't know when we shall start.(改为简单句) I don't know ____ _ I don't know 同意句转 I didn’t know I don’t know when we shall start the work. 英语改写句子,急用I don’t know when i shall start the work （改为简单句）I d