So what is the solution? • Why can't it have a big battery? • Electric cars might be popular. • These fuels will run out someday while the price is rising.

• So what is the solution?
• Why can't it have a big battery?
• Electric cars might be popular.
• These fuels will run out someday while the price is rising.
• It means they got some first success.
• What about the cars?
• Why do you say that?

• Good question!
Hoang: I think people will mostly use electric cars in the near future.
Duyen: Really? (1) ________________________________.
Hoang: You know, most of the current vehicles run on gasoline or diesel. (2) ___________________. And automobile companies are producing electric cars.
Duyen: I don’t see many electric cars out there, just electric bikes.
Hoang: Bikes are mostly used in short distances, so it’s easy to install a small battery on them.
Duyen: (3) ________________________________.
Hoang: Cars need a much bigger battery to operate. That is the problem.
Duyen: A car is much bigger than a bike, isn’t it? (4) ________________________________.
Hoang: (5) ________________________________. It’s because the big one takes much space in the car and it becomes heavy. Then your car can’t either carry some people or travel for a long distance.
Duyen: (6) ________________________________.
Hoang: Energy companies are trying to make smaller batteries with more energy. Now you can see more electric cars in the street than before. (7) ________________________________.
Duyen: Maybe you’re right... (8) ________________________________.
Hoang: Sure they will. They are less polluted and also less noisy on the road, so everyone will like them.