Pronunciation Pairs 001 (Units 1_21)PP 001 (Unit1_2)PP 002 (unit 2_6)PP 003 (units 7-10)PP 004 (units 11-13)PP 005 (units 14_19)PP 006 (unit 20_21)

Pronunciation Pairs 002PP 001 (22_24)PP 002 (25_27)PP 003 (28_32)PP 004 ((33_37)PP 005 (38_41)PP 006 (42_Backcover)