American English Pronunciation Level 1 (999 Words)
American English Pronunciation Level 2 (999 Words)
American English Pronunciation Level 3 (1000 Words)
American English Pronunciation Level 4 (999 Words)
American English Pronunciation Level 5 (1000 Words)
American English Pronunciation Level 6 (1000 Words)
American English Pronunciation Level 7 (998 Words)
American English Pronunciation Level 8 (1000 Words)
American English Pronunciation Level 9 (1000 Words)
American English Pronunciation Level 10 (1000 Words)