第一节 单项填空（共15小题，每小题1分，满分15分）
21.I can’ t remember when exactly the Robinsons left city. I only remember it was Monday.
A. the; the B. a; the C. a; a D. the; a
22.Yesterday, Jane walked away from the discussion. Otherwise, she something she would rather regret later.
A. had said B. said C. might say D. might have said
