When will you come to China again?这句话有什么错误吗?

I don't know when he ____,but when he ____,I will let you know.A will come ;comesB comes ;will comeCcomes;comesD will come; will come I don't know when he _(come)back.when he _(come)back,I will call you I don't know when Mr.Li ____ back.But I'll call you at once when he ___ backa.will come; will come b.comes; comesc.come; will come d.will come; comes为什么选D tom doesn't tell me when he___i will call you as soon as he___a;will come comesb;will come will comec;comes will comed;comes comes I don't know when Rose will come tomorrow.Would you please tell me＿tomorrowA.when she comes B.when she will come When will he come to see you? When i come.You will get when will you【】【come】 to my school .--Do you know when he ___ back --Sorry ,I don”t .When he ___back ,I”ll tell you .A(comes.will come) B (will come ,comes) i can’t tell you.when will jim come back?的同义句 He doesn't tell me when he （ ）.I’ll phone you when he ( )A、will come,comes B、will come,will come C、comes,will come D、comes,comes 46.I don't know when he ____a__,but when he ______,I'll let you know.A.will come/comes B.comes/will come C.comes/comes D.will come/will come为什么选A? --Do you know whon he___back tomorrow?--Sorry,I don't know When he___back,I will tell youA.comes,comes B.comes,will come C.will come,comes D.will come,will come Do you know when your mother___(come,will come) Excuse me. Could you wake me up when my friend _____ here?—Of course. But we still don't know when your friend _____ here. A. comes;will comeB. comes;comesC. will come;comesD. will come;will come I don't know when she ---,but when she----,i -----you know.a.comes ,will come ,let b.will come,comes ,will let c.will come ,comes ,let d.comes ,comes,let when _____again?I don't know.but when she_____,I'll let you know.A.she comes,comes B.will she come,will comeC .she comes,will come D .will she come,comes为什么？ Could you wake me up ,When my friend( )here?of course,but we still don't know when your( )hereA.comes will B.comes comes C.will come comes D.will come will come为什么选A呢?