A、Keeping the body straight. B、Keeping the feet to the floor. C、Bending the body at the waist. D、Bending the elbows as low as po

M: I went out with my girlfriend to a nice restaurant last night and I noticed that many people shouted for the bill. It was quite annoying and dislikable.
W: That seems to be very common among people now, but I have to say, it is a little impolite in such a public place.
M: I can’t agree more. I just thought I’d ask you and see what you thought of it. Anyway, what did you do yesterday evening?
W: Well, I planned to go to the gym, but it was really a warm evening, so I walked in the park for a couple of miles. Actually, several other people had the same idea. I saw Bill.
M: Did you? How is he these days?
W: He is OK. We just stopped and chatted for a few minutes Then he got a call and went back.
M: I see. So can you suggest a few exercises to help me stretch my muscles a little?
W: Sure. One good way is to do push-ups.
M: When I do push-ups, should I bend my elbows so that my nose touches the ground?
W: Actually, you don’t need to bend your elbows that much Bend them so that your arms are at a 90 degree angle. The most important thing is to remember to keep your body straight. Many people bend their bodies at the waist which reduces the effectiveness of the exercise.
M: What’s a good exercise for my chest muscles?
W: Lie on your back, hold a weight in each hand and stretch your arms outside of your body. Then lift the weights up keeping your arms straight all the time.
23．What does the woman think of people’s shouting for the bill?
24.Where did the woman meet Bill?
25.What is the most important thing in doing pushups?