i don not know when we shall meet again 同义句

i don not know when we shall meet again 同义句 I don not know when the party will begin.(改为同义句)I ( ) ( ) ( ) when the party will begin I don't know when ( ) famous I am very upset and don not know _______ to do when I see this.A whatB whichC whyD how I don't know when leave 还是I don't know when to leaf We don not know when (finish) the work .如何填 I don not know when he will come.是定语从句还是宾语从句,它们如何区分. I don't know when I have been loving i don not know what i should do next I really don not know I can thank you enough I really don't know how to say .I miss you .The day when you left I dare not to see you off . 改错 I don’t know when will they come I don’t know when we shall start the work. 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 not know which one I should choose同义句转换 I don not know which one ______ ______ What do you write?I don not know.翻译中文