单项选择题
It is an early step toward a robo-car that can drive itself, perhaps（）.
A.better than you B.better than you can C.better you can
单项选择题 On vacation with the family the driver may want to（）and talk to the kids
单项选择题 How much control you want to turn over to the car may（）your age and where you are going.
单项选择题 GM envisions a system（）the Mobility Internet.
