关于一个从句...

Can you tell me who the man is ?
who 后接主语,再跟谓语.

连词who在从句中作主语，故不改变语序！

例如，I don't know what is the matter with him.

Tell me who put it here.

应该是Can you tell me who the man is ?
主句是Can u tell me sth.?的句型，"who the man is"是宾语从句，不需要用疑问句语序