EX8

1 Had heard/ would have taken

2 Had come/ would have met

3 Had listened/ would not have happened

4 Had known/ would have called

5 Would you have done../ had not lent

6 Had not been/ wouldn't have been

7 Had not missed/ wouldn't have been

8 Had told../ would have gone

9 Wouldn't have refused.../ had asked

10 Would you have come.../ had told

EX2

2 If it is snow, the children will make a snowman

3 Unless you work harder, you will fail the exam

4 He won't like the food if you don't put more salt in it

5 I will come with you unless i am busy

6 Unless you give the dog a bone, it will not go away

7 Unless she have a rest, she will become ill

8 If i find Leslie's book, i will send it to her

EX5

2 If you mix red and blue, you get purple

3 does glass break when you heat it?

4 If you don't eat, you get thin

5 When the weather is nice, i walk to work

6 Does your brother help you with your homework when he has time?

7 I usually read a good book when i'm not busy

8 If the plants don't get enough water, they die

Ex2 :

2. If it is snow, the children will make a snowman.

3. Unless you work harder, you will fail the exam.

4. He won't like the food if you don't put more salt in it.

5. I will come with you unless i am busy.

6. Unless you give the dog a bone, it will not go away.

7. Unless she have a rest, she will become ill.

8. If i find Leslie's book, i will send it to her.

Ex5 :

2. If you mix red and blue, you get purple.

3. does glass break when you heat it ?

4. If you don't eat, you get thin.

5. When the weather is nice, i walk to work.

6. Does your brother help you with your homework when he has time ? 

7. I usually read a good book when i'm not busy.

8. If the plants don't get enough water, they die.