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