It now seems certain Tom will fail in the exam.
25. Her grandmother has taught in this school _______ she became a school teacher.
24. Is this the hotel ________ you stayed the first time you were here?
23. Please ask ________ not to skate on the thin ice. It’s very dangerous.
22. Jack, you’ve done your homework, ________ you?
第二部分知识运用(共两节,满分20分)第一节单项填空(共10小题;每小题1分,满分10分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21. When I got up that morning, I found ________ elephant standing by the window. A. a B. an C. the D. 不填