My name is Linda. I am now in everyone's family. Many people like me. They use me to see films or get some information for things. I will help students study on line. I think I am very helpful to people.

I am Eddie. I am thin but strong. I will come into everyone's family in the future. I can help people do some housework. I can make people relax.

Please look at me. My name is David. I am very small and light. I have many brothers and sisters. We will take people to many places. We don't use any gas. We only use sunlight. So we don't make any air pollution.