I. Lessons for beginners
unit 1: animals / colors	unit 2: vegetables / colors

II. Lessons+
unit 1: fruits / colors	unit 2: is / is not	unit 3: has / has no	unit 4: big / small
unit 5: long / short	unit 6: girl / boy	unit 7: man / woman	unit 8: giving / taking
unit 9: walking / running	unit 10: drinking / eating	unit 11: reading / writing	unit 12: flying / swimming

III. Lessons++
unit 1: places	unit 2: holidays	unit 3: stories