1. The smartphone is one of the most useful wireless devices.

2. Solar panels take energy from the sun to produce electricty . 

3. Household wastethe polluted environment when not disposed of properly. 

4. More and more companies are making products from recycled materials. 

5. Reusing water bottles reduce plastic waste and contribute to saving the environment. 

6. The International Robot exhibition is the largest robot trade fair in the world. 

7. Robotics helps to make work and your life easily.

8. Robots don’t have the able to think about their action before they act. 

1. wireless

2. electricity

3. pollute

4. recycled

5. reuse

6. exhibition

7. easier

8. ability