oblivious

"Chinese" can mean the written OR the spoken language. It can also be used to describe people who are born of this descent. - T. j+ x" C" b3 A

( t; n: T) ?& x' F  I! u% B# }5.39.217.76i.e. Can you read Chinese? <-- written
& t% Y% ~5 z! ]% I5 zDo you speak Chinese? <-- spoken
1 W: g/ u) n) a5 c" F+ w  A' ]9 r5.39.217.76Are you Chinese? <-- adjective* W& Y; U& a' g- r9 W% x2 V

+ i. x" F1 Q1 Z) k3 [" ?; t2 VSince this series takes place in an era of HK before the late 1990s (before it is officially returned as a part of China), "Chinese" can be loosely used to mean Cantonese, since Mandarin hasn't been established as a common dialect of China yet. On the other hand, Cantonese is the predominant language of the local area. So, I think what 松哥 said is acceptable.