who will be our class teacher next term do you know

问题描述:

who will be our class teacher next term do you know
do you know --------- ------------ be our class teacher next term

do you know ----who----- ---will--------- be our class teacher next term什么时候连接词用if/whether是否 的意思时,如I don't know if it is right.我不知道它是否是对的。