These are the keys for exercises 2, 3, 4 and 6 p.36:

Exercise 2:

1. If Sandra weren’t so self-confident, she would study more.
2. If she had studied for the maths test, she wouldn’t have failed it.
3. If she hadn’t failed th test, she wouldn’t be sad.
4. I you had been there wou would have seen what happened.
5. If you had been there, you would understand why I cried.
6. If you were me, you would understand how I feel.

Exercise 3:

1. I wish I had gone to the party.
2. I wish she hadn’t gone there.
3. If only she hdn’t kissed my best friend.
4. I wish they wouldn’t go out.
5. If only my television hadn’t broken down.
6. If only I hadn’t missed half the match.
7. I wish my team hadn’t lost.
8. I wish the TV would stop showing the winning goal.

Exercise 4

1. such
2. enough
3. so
4. too many
5. too

Exercise 6

1. also
2. such as
3. in addition
4. on the other hand
5. for example
6. moreover
7. in conclusion
8. although

I’m sorry I can’t justify all the answers. I haven’t got much time and need to prepare your test, so…