【单选题】I poked my head into the front of the car, tapped my grandmother on the shoulder, and proudly ______, ―At two minutes per puff, you‘ve taken nine years off your life!
【简答题】When I was satisfied that I'd come up with a reasonable number, I poked my head into the front of the car, tapped my grandmother on the shoulder, and proudly proclaimed, "At two minutes per puff, you'...