Reading 9. (No. 63~66)
https://www.youtube.com/watch?v=60SHyvkOSHw&list=PL6D-YTosvGYq8YexsOG53BGav1CD0t3aM&index=50
Reading 10. (No. 67~70)
https://www.youtube.com/watch?v=pLeiATe2olE&list=PL6D-YTosvGYq8YexsOG53BGav1CD0t3aM&index=51