ANSWER KEY BOOK 1 (EXTRA EXERCISES)

UNIT 1

1 2 3 4 5 6 7 8 9 10
C B B A A B D C D D

UNIT 2

1 2 3 4 5 6 7 8 9 10
D A D D B A D C D B

UNIT 3

1 2 3 4 5 6 7 8 9 10
A C A A C A D C B C

UNIT 4

1 2 3 4 5 6 7 8 9 10
D B D A D D C B A B

UNIT 5

1 2 3 4 5 6 7 8 9 10
C D A B C C C C D D

UNIT 6

1 2 3 4 5 6 7 8 9 10
D D D C B D D D A C

UNIT 7

1 2 3 4 5 6 7 8 9 10
C B C C D A D D C D

UNIT 8

1 2 3 4 5 6 7 8 9 10
C A B A B A D C A B

UNIT 9

1 2 3 4 5 6 7 8 9 10
B D C A D B B D A C

UNIT 10

1 2 3 4 5 6 7 8 9 10
A B D B D D C C B B

ANSWER KEY BOOK 2 (EXTRA EXERCISES)

UNIT 11

1 2 3 4 5 6 7 8 9 10
A C C D D A C D C C

UNIT 12

1 2 3 4 5 6 7 8 9 10
A D C A D D D B A C

UNIT 13

1 2 3 4 5 6 7 8 9 10
C A B D C C D B B A

UNIT 14

1 2 3 4 5 6 7 8 9 10
D C B A B D B B D C

UNIT 15

1 2 3 4 5 6 7 8 9 10
C D A B D B A C D C

UNIT 16

1 2 3 4 5 6 7 8 9 10
C D A D A C D B A A

UNIT 17

1 2 3 4 5 6 7 8 9 10
D C A C C B C D B C

UNIT 18

1 2 3 4 5 6 7 8 9 10
D C B D C C C A C B

UNIT 19

1 2 3 4 5 6 7 8 9 10
D A A B C C C D A C

UNIT 20

1 2 3 4 5 6 7 8 9 10
C B C A D B A A B A

ANSWER KEY BOOK 3 (EXTRA EXERCISES)

UNIT 21

1 2 3 4 5 6 7 8 9 10
B D A B B A B A D A

UNIT 22

1 2 3 4 5 6 7 8 9 10
A C A C A C A A A D

UNIT 23

1 2 3 4 5 6 7 8 9 10
C B D C A A A C C C

UNIT 24

1 2 3 4 5 6 7 8 9 10
D B A B B C A C A C

UNIT 25

1 2 3 4 5 6 7 8 9 10
A C A C D B B B B D

UNIT 26

1 2 3 4 5 6 7 8 9 10
D A A A B A B B D B

UNIT 27

1 2 3 4 5 6 7 8 9 10
D C C D D D A C A C

UNIT 28

1 2 3 4 5 6 7 8 9 10
C A A D A D A C B A

UNIT 29

1 2 3 4 5 6 7 8 9 10
C A B A D C B C D B

UNIT 30

1 2 3 4 5 6 7 8 9 10
B D B D C B B C A A