I don't know when ___(have) a farewell party for them

I don't know 同意句转I don't know.I __ __ __. When will they come here ? I really don't know .(合并为一句)I really don't know when __ __ come here . where is the railway station?I don't know.合并成一句 I don't know __ __ __ __ __. I don't know when ( ) famous What if I don't know anyone?同义句What __ __ __ if I don't know anyone when () Mr White __(leave) home?sorry I don't know I __(not notice) him leavingmother is going __(swim) this afternoon I don't know when leave 还是I don't know when to leaf sorry,I don`t know.= sorry,I have__ __ I don't know what I should do next.(同义句转换） I don't know __ __ __next i don't know where she __(live) i don't know what this word means,同义句转换 i don t know __ __ __this word I don't know when I have been loving I have no friends here.I don't know what I should do. I have no friends here.I don't know __ __ __. I don't know __ is __ you are after.A.that...when B.that...what C.what.../ D.what...where请问答案应该是哪个? 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~