听第10段材料，回答第17至20题。 There was a football game on TV last Saturday evening. The game was between a Spanish team and an Austrian team. I sat in front of the TV at 7 o'clock, when the game began. An hour later, my wife came to join me. She seemed to be rather absent-minded while she was watching the game. Just as the clock showed one minute and forty two seconds left in the game, she began cheering wildly, 'Come on—get going!' Since she had never been a football fan, I looked at her in surprise and asked which team she was cheering for. 'Neither,' she replied, 'I 'm cheering the time clock on.' When was the football game shown on TV? [A] Last Sunday evening. [B] Last Saturday evening. [C] Last Saturday afternoon.