1. (2020·长春模拟) 根据对话内容，运用方框中所给的句子选项补全对话。选项中有一项是多余的。

A: Alex, do you like to drive?

B: Sure. But I don't like to sit in traffic!

A: When I'm tired, I avoid driving.

B: I know. I don't drive when the weather is bad.

A: So a self-driving car, would be really great.

B: A what?

A: A self-driving car. You can go to places at the push of a button (按钮).

B:

A: Sure. Choose a place you want to go to and program the car. Then you push a button. And the car takes you there.

B: You don't have to do anything?

A: No.

B: What a great invention! Just think. Blind people could use self-driving cars.

A: Right. Now many old people give up their cars because they're no longer safe drivers.

B:

A: Yes.

A. It's not safe. B. Would you like one? C. You just enjoy the ride! D. And old people could use them, too. E. Could you please tell me how it works? F. So self-driving cars are very convenient for them.