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
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