A. the few

    B. a few

    C. some

    D. few

    22. The students are busy_______ the examination.

    A. preparing for

    B. preparing

    C. to prepare

    D. to prepare for

    23. It's high time we _______ something to stop traffic accident.

    A. do

    B. will do

    C. did

    D. must do

    24. Encouragement through praise is the most effective method of getting people _______ their best.

    A. do

    B. to do

    C. doing

    D. done

    25. I hadn't seen him for years，but I _______ his voice on telephone.

    A. realized

    B. discovered

    C. accepted

    D. recognized

    26. Education is not an end but a（n）_______ to an end.

    A. means

    B. solution

    C. measure

    D. idea

    27. She believes in the principle _______ to love is to give，not to take.

    A. how

    B. which

    C. that

    D. what

    28. If you speak slowly and clearly，the students will _______ the meaning.

    A. take on

    B. take down

    C. take in

    D. take back

    29. We can hardly avoid making any mistakes in our work _______ hard we try.

    A. whatever

    B. how

    C. no matter

    D. however

    30. The machine can't be made perfect overnight；in fact，it should be improved _______.

    A. one after another

    B. by turn

    C. right away

    D. step by step

    参考答案：

    21—25 DACBD 26—30 ACCDD