( ) 7 I don't know ___ they have passed the exam.A.what B.if

I don't know ____ they have passed the exam.A.what B.if C.wh I don’t know _______ they have passed the exam. I don't know___ A that I have passed the exam B if I had pas I don't know _____ they have passed the exam or not I don't know the girl ___ long curly hair.A have B has Cwith 英语翻译I don't know what they ___ ___ ___in the room. ? I have passed the exam I don‘t know if they ——(have)a party next week. （ ）,he would have passed the exam.A.If he studied hard B.Had They all passed the exam,but I didn't.They all passed the ex I was the first person ___ passed the exam.A./ B.which C.tha I don't know__.A.what was outside the matter B.I don't know