1. I'm think about solar energy.It is a renewable power source and can replace non-renewable energy sources such as gas, oil, ... Solar energy is used for many things such as: home heating, cooking, ... Solar panels installed and can replace electricity in the home help us save more electricity money. However, using too much solar energy will heat the earth and change the climate, so we find many sources of renewable energy and use them in turn.

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2. In the future, there will be high-speed train. The train will go around the city. It"s driverless trains. It will use solar energy. It will look like metro. It will help people to travel faster, more saftely and conviniently. 

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VOTE 5 VÀ CTLHN NHA:3

The future means of transport I’m thinking about is a flying car. It looks like a normal car but it has wings and it can fly in the sky. The car will have solar panels to catch heat from the sun and generate power. Therefore, it will use the solar energy. I think it is a big invention which is good for environment and save energy.