What's your telephone number

what ,s your telephone number? What's your telephone number What,s your sister,s telephone number what‘s your telephone number是什么意思 what,s your telephone number?怎么回答? What‘s telephone number of your friend? 19.---What’s your telephone number?--- _______ . what's your doctor's name and telephone number? what's your dentist's name and telephone number what is your telephone number What's this your telephone number?This his w____ 原句：What's the number of your telephone,please?