Sunglasses can be used to ________ the sunshine from ________ our eyes.

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The two men had their lights ________ all night.

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Wood will get ________ if it is put quite close to a fire.

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　　A doctor was once teaching a class of students at a famous hospital in London. An injured（受伤）man came in, and the doctor turned to one of the __1__ and asked him,“What's wrong __2__ this man?”

　　“I don't know, sir,”the student answered,“Shall I examine（检查）him and __3__?”

　　“There is no need to examine him,”said the doctor.“You should know without __4__ questions. He hurt his right knee（膝盖）. Didn't you notice the way he __5__? He hurt it by burning. You can know from his trousers. This is Monday morning. Yesterday was fine, but on Saturday the roads were wet. __6__ the man's trousers. He fell down on Saturday night.”

　　The doctor then turned to the man and said,“You had your pay on Saturday and went to have a __7__ at some place in the street. You fell down and got wet on the __8__. You tried to __9__ your clothes by the fire when you got home. But because you drank __10__, you fell on the fire and burnt your knee. Is that right?”