Do you know ______ the boy is?

Do you know the boy ______ football there DO you know the boy ________sunglasses,he is my brother Do you know the boy (who is ) called Tom?和 Do you know the b Do you know who A.is the B.the boy is C.the boy(撇s) Do you know ______ this boy is always crying?Because he is h 如何将Do you know the boy who is swimming over there?转换为Do you Do you know the boy 肯定回答 Do you know the boy in b____ Do you know the boy ( ) sunglasses? Do you know the boy ( ) b Do you know the boy ()(name) David Do you know the boy () Tony?