Sleep is important, and ______trouble having a good night’s rest can be very annoying.
183. --- You look pale, what troubled you?--- I ______ my dead friend.
184. I thought you _____ like something to read, so I have brought you some books.
186. There are things people accept less, _____ you defend them.
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.