Exercise 6: Gap - filling: Choose the suitable words from the box to complete the sentences. economical      chop              wisely            inventions         submarine contributed      versatile        earbuds         access               games 1. They say that it is more convenient when ________ are used for listening to music without disturbing other people. 2. This kind of car is very ________, so we do not have to spend too much money on buying petrol or diesel. 3. The computer is said to be one of the most significant ________ of human beings. 4. If you use the internet ________, you will be able to discover a variety of new things. 5. In our modem life, people have loads of work to do, so they want to own the very ________ devices which can do many things. 6. We can use a laptop or a smartphone to get ________ to the Internet. 7. To feel at ease, some children use a handheld video game device to play computer ________. 8. A food processor is normally used to ________ up or mix food. 9. The ________, which can travel underwater, imitates a dolphin’s shape. 10. Science and technology have ________ to environmental protection and natural preservation GIÚP MÌNH VỚI, MÌNH ĐANG CẦN GẤP