选择什么写明原因I don’t know________A.what happened to them.B.what happened them toC.what is wrong with them.D.what the wrong is with them

I don't know what/how/when to do with the problem选择的原因 I speak a few words of French .I don't know( )FrenchA many B much C plenty of D a little 选择什么 说明原因 选择什么写明原因I don’t know________A.what happened to them.B.what happened them toC.what is wrong with them.D.what the wrong is with them sorry,I don't know!什么意识? who is 什么?I don,t know I don't know. “i don't know you know i don't know i don't know how与 i don't know why有什么区别? sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her