Polar bears live mostly on __________ sea ice, which they use as __________ platform for hunting seals.
187. Bill Gates has made it known that much of his wealth _______ to the society.
188. He found it dull to be kept in the same class with other students, for his English was _____ above the beginners’ level.
189. I tried to ____ in my speech we were all grateful for his help.
190._______ popular belief that classical music is too complex, it achieves a simplicity that only a genius can create.
191. My enthusiasm for Chinese football team gradually _____ because of their countless failures.