Exercise 1

Exercise 2

Exercise 3

Exercise 4

Exercise 5(Test One)

Exercise 6

Exercise 7

Exercise 8

Exercise 9

Exercise 10

Exercise 11

Exercise 12(Test Two)

Exercise 13

Exercise 14

Exercise 15

Exercise 16

Exercise 17(Test Three)

Exercise 18

Exercise 19

Exercise 20

Exercise 21(Test Four)

Key to Book 1