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
