第一节：单项选择：（共15小题；每小题1分，满分15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，并在答题卡上将该题涂黑。

21. ____________ will we give in to the difficulties. Which of the answers can’t be chosen?

A. On no condition                B. At no time      

C. In no time                     D. Never

22. Not for a moment ________ the truth of your story.

A. he have doubted              B. he doubts     

 C. did he doubt                  D. he did doubt

23. Next door to ours _________, who has just returned form abroad.

A. where lives an old man          B. where does an old man live     

C. lives an old man                D. does an old man live

24. Not only ________ polluted but __________ crowded.

A. did I feel        B. I felt        C. I had felt         D. had I felt

25. I finally got the job I dreamed about. Never in all life ________ so happy.

A. useful           B. value        C. important          D. worth

26. Not only __________ interested in football but _________ beginning to show an interest in it.

A. the teacher himself is , all his students are

   B. the teacher himself is, are all his students

  C. is the teacher himself, are all his students

   D. is the teacher himself, all his students are

27. We are ________ by doctors to eat more natural food and take plenty of physical exercises.

A. suggested    B. warned of       C. informed       D. advised

28. As you know, it is my duty to ________ my younger sisters from being hurt when they are in danger.

   A. prevent         B. save           C. stop         D. protect