25. The company said as well as giving customers faster internet, 4G would also be _________ big benefit to businesses.
A. for B. of C. with D. to
26. Instead of having to choose one or the other, we can benefit from ________ of the approaches
A. every B. all C. both D. another
27. Dr. Margaret Chan was eventually selected as the world's top health official and it is the first time that a Chinese ________ such a high-ranking U.N. post.
A. holds B. had held C. will hold D. has held