Tests and Keys

What you'll find here is the key to most of the excercises in your textbook.

Answer Key_Student's book          Answer Key_Grammar Reference

This section contains the key to the extra-grammar exercises that I downloaded from the net.

LIFE UNIT 1 IMMIGRATION
          UI_Unit1_AnswerKey.pdf
LIFE UNIT 2 STORYTELLING
          UI_Unit2_AnswerKey.pdf
LIFE UNIT 3 SCIENCE AND TECHNOLOGY
          UI_Unit3_AnswerKey.pdf
LIFE UNIT 4 ART AND CREATIVITY
          UI_Unit4_AnswerKey.pdf
LIFE UNIT 5 DEVELOPMENT
          UI_Unit5_AnswerKey.pdf
LIFE UNIT 6 ALTERNATIVE TRAVEL
          UI_Unit6_AnswerKey.pdf
LIFE UNIT 7 NATURAL RESOURCES
          UI_Unit7_AnswerKey.pdf
LIFE UNIT 8 THE NEWS
          UI_Unit8_AnswerKey.pdf
LIFE UNIT 9 TALENTED PEOPLE
          UI_Unit9_AnswerKey.pdf
LIFE UNIT 10 CUSTOMS AND BEHAVIOUR
          UI_Unit10_AnswerKey.pdf
LIFE UNIT 11 KNOWLEDGE AND LEARNING
          UI_Unit11_AnswerKey.pdf
LIFE UNIT 12 THE ECONOMY
          UI_Unit12_AnswerKey.pdf