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Improve your vocabulary, listening or reading skills with the quizzes below.
Vocabulary Quiz
substance • transport • gonna
efficient • shortage
  1. There is an oily all over the back of my jacket. Where did it come from?
  2. This city was made for people who don't have cars. The public is incredible.
  3. There is always a of ice at parties.
  4. When are we go out for coffee and catch up on life?
  5. What is the most way to get from my house to yours?
Comprehension Quiz
Answer the following questions about the interview.
Superbowl Party

Mixer #82 Cars and the Future

Various people consider people will still be driving cars in 100 years.

  • Transcript
  • Audio Slide Show
  • Vocabulary



I do think in 100 years people will be driving cars but probably not run by gasoline, but perhaps by other substances.

'Substances' are different materials or chemicals. See additional uses below:

  1. Some substances are illegal because they can be made into drugs.
  2. Machinery that goes into space has to be made with special substances that can withstand radiation.

public transport


I think as public transport systems get better and faster and more effective people will stop using their cars.

Buses, trains, and subways are the most common forms of 'public transportation.' Here are two more examples:

  1. I love taking public transportation because I can read while I commute to work.
  2. I like taking my own car better than public transportation because I like to sing in the car.



People are gonna realize they're gonna save money by using public transport.  

Gonna is an informal way of saying 'going to'. Here are two more uses:

  1. I’m gonna go now. I’ll be back soon.
  2. If he doesn’t start coming to work on time, he’s gonna get fired.



I think they'll drive cars but I think the technology will be much more efficient.

When something is 'efficient,' it means that it works very well and it is very fast. When something is 'efficient' it functions in the best possible manner to complete the task it was made to do. It does not waste time, energy or money. Here are some more samples:

  1. Sending an e-mail is much more efficient than writing a letter by hand.
  2. Computers have become much smaller and more efficient in the last ten years.



I do think we're gonna have a gas shortage and an oil shortage and so we need to look for new kind of fuel.

A 'shortage' is when there is not enough of something. Notice the sample sentences:

  1. During the water shortage, we had to shower as quickly as possible.
  2. When there are gas shortages, the prices usually go way up.