In Tianjin, China, a group of people are waiting at the bus stop. Soon, the special bus comes to the bus stop. It looks like a panda with black ears and black eyes. After getting on the bus, people only need to buy their tickets by scanning(扫描)their hands! About one minute later, the bus begins itself-driving mode(模式). When the traffic lights turn red or when it reaches the bus stop, it stops_automatically.
There is also a robot on the bus. People can talk to it and ask it for help. If there is a bad person on the bus, the robot will call the police. "It's very convenient(方便), " says a woman taking the bus. "And kids love it. "
A company called Deep Blue Technology makes this kind of buses. They're working in ten cities all over China. More cities in China will put this kind of buses into use this year. I think soon you can take the bus in your city.
Now smart(智能的)buses are no longer buses in the future. Would you like to take a ride on the smart bus?
①Call the police. ②Talk to people. ③Play with kids. ④Drive the bus.