"There is your proof!" the host says."A man has just shown us real control."

"Just a minute," the American says, turning to his hostess,"How did you know that cobrawas in the room?"

A faint smile comes across the woman's face as she replies. "Because it was lying across myfoot.""

21. What is the argument between the army officer and the young girl about?

　　A. Whether women are afraid of mice.

　　B. Whether men are calmer than women.

　　C. Whether men are cleverer than women.

　　D. Whether women would make suitable soldiers.

22. Why is the servant asked to put out some milk?

　　A. To play a trick.

　　B. To serve the guests.

　　C. To attract the snake .

　　D. To feed the hostess's pet.

23. Why does the scientist suggest the guests play a game?

　　A. He doesn't want anyone to panic.

　　B. He intends to test the officer's theory.

　　C. He sees there was a snake in the room.

D. He wants to entertain the other guests.