单项选择题

It would have taken hours to work the sum out, so he（）his pocket calculator.

A. turned out
B. turned to
C. turned up
D. turned off

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单项选择题

Boris tried to work out the puzzle many times, but at last he became（）and gave up.

A. disturbed
B. dissatisfied
C. discouraged
D. disabled

单项选择题

Mr. Johnson worked in a shop which sold, cleaned and repaired hearing aids. One day an old gentleman entered and put one down in front of him without saying a word. What’s the matter with it Mr. Johnson asked. The man did not answer. Of course Mr. Johnson thought that the man must be deaf and that his hearing aid must be faulty, so he said again, more loudly, What’s wrong with your hearing aid, sir Again the man said nothing, so Mr. Johnson shouted his question again as loudly as he could.The man then took a pen and a piece of paper and wrote: It isn’t necessary to shout when you’re speaking to me. My ears are as good as yours. This hearing aid is my wife’s, not mine. I’ve just had a throat operation, and my problem is not that I can’t hear, but that I can’t speak. （）

A. He was angry
B. He usually spoke loudly
C. He thought the man must be deaf
D. He knew the man had had an operation.

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