do you know ___else is going to be on duty today (who/whom)

do you know ___else is going to be on duty today (who/whom) 2.Do you know ______ else is going to be on duty today?（who, 2.Can you tell me ( )else is going to be on duty today?(who, who is on duty today Who is on duty today?为什么用on duty Who is on duty today ?是什么意思 谢谢 who is on duty today怎么回答 Can you tell me ( )else is goning to be on duty tody.( who w who is ( ) duty today? is on duty today who＿＿＿（be）on duty today? who be on duty today. 适当形式 理由