Do you know who (hanging out)at the school gate正确吗

Do you know ___standing at the gate? Who do you sometimes wait at the school gate?(改错） Do you know that ____(personal) at the gate? who will you wait () the school gate who is waiting for you at the school gate?could you tell me someone is waiting for you at the school gate who is ( ) A\i 英语中 Do you know the name of the boy standing at the gate?这句话 Do you know the name of the boy standing at the gate?为什么用sta Do you know ___ lady at the gate of the park?Yes.She is____u do you know the girl(stand)___at the gate? at the school gate 同义词 Do you know who he is 正确吗语法?