I remember________him about it,so you needn't tell him about

I remember________him about it,so you needn't tell him about you needn't tell him about the accident.he has learned( )it( you needn't be so rude about it? Shall I tell John about it?的否定回答的答案是,No,you needn't.和No,you You needn't be so rude about it.这句话中about是什么意思 ------ ------ you tell him about it?OK.I will do it. he's done it for you,so you needn't worry about () it. You needn't worry about him,he seems__himself in there. I'll help you,so you needn't worry about your eaxm.为什么要用need "you needn t be so rude about it ",my wife answered as she l I_____（not tell)about it.so I don't know about it you needn't worry about it. 同义句.