I don't know how to use this.改同义句

I don't know how to use this.改同义句 I don't know how to use a dictionary.同义句I don’t know — I — — We don't know how to use this computer?的同义句 I don't know how I can get to the airport(改同义句） I.don't know 改同义句.1.I don't know how I should say sorry to him.I don't kn I don’know how to pronounce this word 同义句 英语 改同义句：i don not know how i can use commas 求“I don't know how to use commas”的同义句“I am good at swimming” I don't know how to get there~同义句~ I don't know how to help him同义句 I don't know how I should use your mobile phone.解释句怎么改 i don't know how to deal with it同义句 i don't know ( )( )( )(