UNIT 3A
UNIT 4B
100

A

Say the answers of exercise Nº5, page Nº 43.

100

H

Say the answers of exercise Nº3, page Nº 42.

200

B

Say the answers of exercise Nº2, page Nº 42.

200

C

Say the answers of exercise Nº2, page Nº 43.

400

F

Say the answers of exercise Nº5a, page Nº 42.

400

E

Say the answers of exercise Nº1, page Nº 43.

500

D

Say the answers of exercise Nº4, page Nº 42.

500

G

Say the answers of exercise Nº4, page Nº 43.