my teacher said nothing about it.if you know ,tell me please

I know nothing about it ____ you tell me!(after,if,until,whi If you know where it might be,please tell me.句型转换 If you ___ Don't____to know something if you know nothing about it. if you see my teacher or my student ,tell（ ） about it please tell （ ） about it if （ ） doesn‘t know Could you please tell me _______________ you know about the -If you know ____who collect snow globes,please tell me. 1.-would you please tell me more about it? ------Could you please tell me about it in d____? if you do care please tell me it worth please tell ( )about it if ( )doesn't know.A.her,herself B.s 英语翻译Do you know about Big Ben?Now let me tell you about it.B