Ex III. A 1 True

2 False

3 False

4 True

5 False

6 True

B 7 Exhausted fume from the vehicles and factories is polluting the air

8 Every nation should find environmental solutions

9 Yes,it is

0 No, they don't

IV 1 Although the traffic was bad, I arrived on time

2 I suggest using the shower to save water

3  If Nam had enough money, he would buy a new bike

V.4 The man who is standing over there is my father

5 I like reading books which tell about different people and their cultures

1. Although the traffic was bad, I arrived on time

2. I suggest using the shower to save water

3. If Nam had enough money, he could buy a new bike

4. The man who is standing over there is my father

5. I like reading books which tell about different peoples and their cultures