Study the Active vocabulary. lnsert the missing words. 1. In lighting electricity _through _. 2. What do you like more: watching _or listening to the _? 3. 1 can't _how people lived without _devices. 4. Do you have any _at home? No, 1 have only disks. I'm for _. 5. Does this camera have much _? No, this camera is not digital. lt has а 5-millimetre _ 6. Devices which have _, and not tubes are much smaller and much more powerful. 7. The number of digital devices _every year. We depend on _more and more. 8. Many electronic devices are used for ___, not for work. 9. Computers and digital cameras are _devices. It means that they can exchange information.

1. In lighting electricity _passes through wires_.
Explanation: When we say "in lighting electricity," we mean the process of providing electricity to a light source in order to make it work. Here, the missing word is "passes through," which means that the electricity flows through the wires to power the light.

2. What do you like more: watching _movies_ or listening to _music_?
Explanation: Here, the missing words are "movies" and "music." The question is asking about personal preferences between watching movies or listening to music.

3. I can't _imagine_ how people lived without _electronic_ devices.
Explanation: The missing word is "imagine," which means to create a mental picture or concept. The sentence is saying that the speaker cannot create a mental picture of how people lived without electronic devices. The missing word "electronic" refers to devices that use electricity to function.

4. Do you have any _DVDs_ at home? No, I have only disks. I'm for _streaming_.
Explanation: Here, the missing word is "DVDs," which are digital video discs used to store and play videos. The person responds that they only have disks, which could mean physical CDs or other forms of media. The missing word "streaming" refers to the method of watching movies or listening to music online without downloading.

5. Does this camera have much _memory_? No, this camera is not digital. It has a 5-millimeter _film_.
Explanation: The missing word is "memory," which in this context refers to the amount of data the camera can store. The second sentence explains that the camera is not digital, meaning it does not store images electronically. Instead, it uses a 5-millimeter film.

6. Devices which have _transistors_, and not tubes are much smaller and much more powerful.
Explanation: The missing word is "transistors," which are electronic components used to amplify or switch electronic signals. The sentence is stating that devices with transistors instead of tubes (an older technology) are smaller in size and more powerful in terms of performance.

7. The number of digital devices _increases_ every year. We depend on _them_ more and more.
Explanation: The missing word is "increases," indicating that the number of digital devices is growing. The second part of the sentence is saying that we rely on these devices more and more as time goes on. The missing word "them" refers to the digital devices mentioned earlier.

8. Many electronic devices are used for _entertainment_, not for work.
Explanation: The missing word is "entertainment," referring to the purpose or use of many electronic devices. The sentence is stating that these devices are primarily used for leisure activities and not for work-related tasks.

9. Computers and digital cameras are _interactive_ devices. It means that they can exchange information.
Explanation: The missing word is "interactive," which describes the ability of computers and digital cameras to communicate or exchange information with other devices. The sentence explains that this feature allows them to share data or interact with other devices.