Input (grade 12): Putonghua To arouse students' interest in Putonghua, the school offers Putonghua Day, Tongue-Twisters, Putonghua Class, Singing Contest, Putonghua Broadcast and Putonghua Corner.
Output (grade 10): There are many activities such as Putonghua Day, Tongue-Twisters, Putonghua Class, Singing Contest, Putonghua Broadcast and Putonghua Corner.