III.

1.will stay

2.has

3.don't rain

4.recycle/won't produce

5.don't water/will die

6.is/won't go

7.will save/don't waste

8.will happen/keep

9.don't stop

10.dump/won't be

IV.

1.If Sue don't hurry, she will miss the bus.

2.Rita will pass the exam If she studies hard.

3.If he watches too much televison, he will hurt his eyes.

4.If it is not sunny tomorrow, we won't go to the beach.

5.We will visit her If we have time.

6.I won't wait If you arrive late.

7.They won't play tennis tomorrow If it is rains.

8.If you don't set your alarm clock, you won't wake up on time.

V.

1.g                     4.b

2.f                      5.c 

3.a                     6.d                

             7.e

VI.

2.for

3.of

4.away

5.off

7.for

8.to

VII.

1.If my brother has enough money, he will buy a bicycle.

2.If I buy the new hat, I will give it to you.

3.If you ask the teacher, he will explain the lesson to you.

4.If we recycle,we will save natural resources.

5.If you be careful, you won't fall over the rock.

6.If you don't be careless,you will break the vase

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