Animals dangerous for human beings should be made extinct. Discuss. Many people think that all animals dangerous for human beings should be made extinct, because they think that these animals can put an end to the human race. I think these people don't understand how our world works. Every single animal has a function on this planet and they form part of the nature. If we eliminate, for example, sharks or mosquitoes, there will be an ecological imbalance in nature. Also, I have to say that we are more dangerous than that animals, because we destroy every single specimen we find in our way. We should start thinking that we are not alone in this world and we can't eliminate all "dangerous" animals that live with us.

Phosting photos on the Internet: for or against? (105 words) I think that posting photos on the Internet is a good way to share moments of your life and hobbies, but you should keep in mind some things. There are many people on the Internet and if you post a photo, these people could download and save it, I mean, every single photo you put on the Internet won't be deleted. By the way, I think that Internet helps many people that want to be weelknown or want to share their work, like artists. In conclusion, I'm in favour of posting photos on the Internet, but we should think what we really want to post.

What kind of people should receive the Nobel Peace Prize? (94 words) The Nobel Peace Prize is a very important award that not everyone can win. This prize should goes to the ones who fight for the right of weak people and the ones who stop wars and injustices in the world. I think there are many unknown people who deserve this prize, but it usually goes to persons that are well know all around the world. But in the end, the name of the award says it all: the Nobel Peace Prize should goes to the person who seek the peace in our disturbed world.

Will the use of computers in education make teachers redundant? (Opinion essay) Some people think that computers are an advance and now it’s not necessary the traditional medium of learning, while others consider that a computer can’t replace teachers. I consider that computers are a good complement in education, but they won’t make teachers redundant. I will try to explain this point. You will never see a school without teachers, that's obvious. I think we can’t learn anything without someone who teaches us. By the way, I consider that it’s necessary the help of computers, as we can find information and everything we need. Some people think that computers are the natural medium of learning for young people today. As I see, young people don’t learn to write or read with computers. They need teachers to do it. To conclude, in my opinion we need both computers and teachers in the education area. We are in the Information Age and we have to modernize the medium of learning.

What should cities do to become greener? The world's population is getting bigger every day. Right now, we are 7 billion people in the world. Owing to the fact that about the 75% of the global population is living in cities, these places need to become greener. We can make it posible thanks to cleaner fuels. If we use it, we will stop the air pollution. Also, recycling waste is very important for the environment, as we can eliminate dangerous substances in the water caused by landfill sites and make it much safer. And, of course, these cities will be more greener if we plant more trees. With this advices, cities' environmental problems won't rise more, but is in our hands to make it possible.