Ⅰ. 完形填空(共20分,每小题1分)
      阅读下面两篇短文,根据短文内容,从各题所给的四个选项中,选出最佳选项。

                                                        A
      David was a kind-hearted man. He liked to help others. One day David had lunch at a restaurant. Suddenly a young woman sat down beside him. David didn’t know what she wanted. She seemed unhappy. David asked her what the   1  was. “The problem is...” she began. But then stopped, it seemed she found it difficult   2   David about it. “My husband and I planned to meet here for lunch at 12:00,” she said at last, “but he hasn’t come yet.”
    “Well, don’t you know   3   he is? Can’t you ring him up?”
    “No, I can’t,” said the woman. “And I’ve had lunch here and I can’t pay the bill   4   I haven’t got any money with me.”
    “Never mind, I’ll pay the bill for you. You can pay me 5   later,” David said.
    “Please tell me your address, and I’ll send you the money as   6   as I get home.” 
      David told her where he lived. After she thanked him 7  , she left the restaurant. 
      After several weeks, when David was having lunch at 8   restaurant, he suddenly heard a familiar voice, “Excuse me. May I just sit here for a moment?”