your telephone number是第几人称单数啊,为啥

是her telephone number is……还是she's telephone numbe _______is your telephone number? You want to know your friend's phone numbe .how do you ask friend? What's your telephone number what ,s your telephone number? Is your telephone .回答Is your telephone .的回答,谁知道?Is your telephone number......的回答，谁知道？ what‘s your telephone number是什么意思 What,s your sister,s telephone number What is ann your telephone number what,s your telephone number?怎么回答? can you give me your telephone no ____ Sally know your telephone number? What‘s telephone number of your friend? 翻译：May I use your telephone? telephone What is your telephone number?（改为同义句） What is ( )( )( ) your telephone? what is your telephone number?改为同义句（）（）is your telephone? May I use your telephone?可不可以说 can I use your telephone?有啥区别?