The time he has devoted in the past ten years ________ the disabled is now considered ________ of great value.
A. to help；being B. to helping；to be
C. to help；to be D. helping；being
The President ________ that he would visit France the following month.
A. deserved B. confirmed C. predicted D. doubted
The technical cooperation and cultural __________ between the two countries are daily on the increase.
A. expenses B. exchanges C. exception D. extension
This is his only request that the room __________ after being used.
A. be cleaned B. would be cleaned
C. is cleaned D. will be cleaned
Speaking of what sort of smartness is most desirable in human __________，a friend of mine told me a story.
A. conduct B. experience C. custom D. habit
We should __________ primary importance to job training.
A. concentrate B. devote C. attach D. emphasize
