帮个忙解决这道题do you know the man with sunglasses is I am not sure .Maybe a reporter.A.who B.what C.where 为什么用what而不用who.能不能具体一点！

what do you know Do you know what Do you know Facebook? do you know my how do you know Do you know Do you know? do you know 亲,Do you know? Do you know what? do you know there? do you know sex How do you know? Do you know? do you know these Do you know do you know是什么意思 Do you know wheretogo,