题型：语法填空（语篇） 题类：常考题 难易度：困难
河北省石家庄市师大附中田家炳中学2017-2018学年高二下学期英语期末考试试卷
Some day, our world may (fill) with driverless cars. But.will we communicate with them if there's nobody in the driver's seat?
At present, drivers can make gestures like (nod) when they let us cross the street. self-driving cars don't have this ability.
The US car maker Ford and its partner Virginia Tech (try) to solve this problem. The team is testing a method uses light signals. For example, a slow-blinking tight shows the car is coming to stop, and a rapidly flashing light tells passers-by that the car is about to speed up.
(test) the method on real roads, the team has designed a special suit that looks like a car scat. When a driver wears it, it appears as if the car were driverless.
The team has (successful) collected more than 1,500 hours of data, which has recorded how people interacted with a “driverless” car. Ford says it plans to share the data 11 other car makers, which should lead to a signaling system that will be used in every driverless car.
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