请帮忙把下面的英语句子从直接引语转换成间接引语~
Read these sentences and decide which is a command and which is a request.Thet retell them in indirect speech.
(1)The children said to tehir teacher:"Would you please sing a song for us?"
(2)The mother said to her child:"Turn off the radio!"
(3)The dentist said to a patient:"Open your mouth please,so I can see the bad tooth clearly."
(4)The secretary said to the woman on the phone:"Could you hold on for a minute?"
(5)John said to his classmate:"Can I borrow your pen please?"
(6)The teacher said to his student:"Come up to my office!"