=>
7. Although we lost the game, we were happy that we played well
8. We used to play these games when we were small.
9. The teacher was not satisfied with his essay.
XV/
1. Will fossil fuel energy be replaced by another name of non-renewable energy or not?
2. We can be surprised about new means of transport in the future.
3. It is undoubted that recycling is a very effective way to save our energy.
4. The amount of energy consumption has kept increasing over the last few decades because of the sharp increase in world population.
5. It is alarming that many people in undeveloped countries are dying everyday because of starvation.
XVI/
1. Without any doubt, people must stop overexploiting, over-using and wasting energy sources right now.
2. Humans will be treated by our environment in a way that human have treated it.
3. All the families should be penalized with more than 2 children by the government.
4. How is over-population caused?
5. It is surprising that some European countries have to import trash from other countries to recycle.