— ________ thirty minutes.

— Because there's ________ cars and ________ pollution there.

    Every year thousands of young people in England finish school and then take a year off before they start working or going to university. Some young people go to other countries and work as volunteers.

    Volunteers give their time to help people. For example, they work in schools or hospitals, or they do something helpful for the environment.

    Paul, 18, comes from Wales. Next year he wants to get to university to study Chinese, but now he's living in Belize. Paul says, "I'm working with other people here to save the coral reefs (珊瑚礁) in the sea near Belize. The reefs here are beautiful, but if the sea water is polluted badly, the coral will die. I'm helping to do study on the coral and the fish that live around the reefs. All over the world, coral reefs are dying. We need to do something about the problem before it's too late. I'm staying with a family here. I help do some housework. I don't get any money, but that's OK. I love my work here, and I'm learning a lot about the people of Belize! When I finish my work, I want to stay here for another three months. I want to travel around Belize and Central America.

    Jack is an English boy. He is a middle school student. When I ask him 1he likes to go to school every day, his answer is "yes". He says it's important for students 2 and play together. They can learn the spirit(精神) of team work and know how to 3 others. So school life 4 a part in everyone's life. He thinks schools won't be gone, 5 students can study on the Internet. I ask him some other questions about the 6. He says there will be 7 cars, because people will like taking the subway better and they know the importance of protecting the 8. He says the air will be cleaner and people will see more blue 9 in cities. Because robots will do many jobs, people will have more 10 to enjoy their lives and stay with their family members.