oblivious

"Chinese" can mean the written OR the spoken language. It can also be used to describe people who are born of this descent.
/ h; _  f$ M; k+ X  ]
+ t9 i+ l, z- a# @9 hTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。i.e. Can you read Chinese? <-- written
0 p" g  J  N7 L( F8 y. _+ eDo you speak Chinese? <-- spoken
9 _% L: n+ J5 m- D% Y8 C* A: Itvb now,tvbnow,bttvbAre you Chinese? <-- adjective公仔箱論壇5 E" E, C# z5 t+ N
tvb now,tvbnow,bttvb: b! I, y8 s5 N) y& F9 @& k6 d
Since 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.