UNIT1 PARENT
UNIT2 COINCIDENCE
UNIT3 COURAGE
UNIT4 MARRIAGE
UNIT5 YOUTH
UNIT6 STRESS
UNIT7 THE BUSINESS WORLD
UNIT8 THE ENVIRONMENT
UNIT9 THE SINGLE CURRENCY
UNIT10 THE CINEMA
UNIT11 LEFT-HANDEDNESS
UNIT12 BIODIVERSITY
UNIT13 INVENTIONS
UNIT14 WOMEN
TEST1
TEST2