do you know (what,how) he will choose a present for his mother's birthday?答案给的是how为什么?

what do you know Do you know what Do you know what? what do you know是什么意思? Do you know ,what's - Do you know what he_____(do) now? I would do anything for you,but you don't know ho If you know what will you do Do you know what I like you do you know what you said what you name Do you know me Do you know what they_______(代表）? Do you know what they are? what’s this( )English?Do you know? do you know what things come from What do you know about Halloween? What do you know about this university? what do you know about the