This is a glimpse of what the future may look like. 

"The goal is to have a very affordable, very economical to operate, but still a very dependable vehicle." 

This car built by Ron Cerven and his Li-ion Motors team is one of 136 vehicles from around the world that _________________________________. The objective: design a car that is fuel-efficient, safe, environmentally friendly and affordable. Brad Jaeger of the team Edison II: "_________________________________and get good fuel mileage, it has to be cheap." 

After going through rigorous testing, the competitors were narrowed down to a few showcased in Washington. The top 3 cars share the big prize. Ron Cerven says it's hard to believe his team won the prize.  

"_________________________________.  I just don't think you can do it. I think it'll take longer than to really kind of get the feel for what we did here."

答案：

(1)competed for the $10,000,000 prize
(2)To have an impact on the world, the car not only has to get, to be more efficient
(3)It's 2 years' worth of work summed up in a day