26. It has always been the __________of our firm to encourage workers to take part in social activi- ties.

　　A. plan

　　B. campaign

　　C. procedure

　　D. policy

　　27. I remember her face but I cannot __________where I met her.

　　A. recall

　　B. remind

　　C. remember

　　D. remark

　　28. It is difficult for us to explain phenomena that we have little or__________ direct knowledge.

　　A. no any

　　B. no

　　C. none

　　D. nothing

　　29. A completely new situation is likely to __________when the school leaving age is raised to 16.

　　A. arouse

　　B. rise

　　C. arise

　　D. abide

　　30. The illness from which Mary is suffering has now been __________as hepatitis (肝火).

　　A. diagnosed

　　B. determined

　　C. deduced

　　D. discovered

　　31. Leading cadres launch rectification campaigns at regular __________to hear the masses'views.

　　A. interaction

　　B. intervals

　　C. interruptions

　　D. interpretation

　　32.__________the traffic jam, we would have caught our train.

　　A. But for

　　B. Because of

　　C. By means of

　　D. Due to

　　33. Vitamins do not provide energy, nor do they construct or build any part of the body. They are needed for__________ foods into energy and body maintenance.

　　A. transforming

　　B. transferring

　　C. altering

　　D. shifting

　　34. There were many people present and he appeared only for a few seconds, so I only caught a__________of him.

　　A. glance

　　B. glimpse

　　C. look

　　D. sight

　　35. Anyone breaking the rules will be asked to leave__________。

　　A. at the spot

　　B. on the spot

　　C. for the spot

　　D. in the spot