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3.Settled in a friendly way,their 　　　　　came to an end.  4.This helps explain why the people of some areas of the United States look so much 　　　　　.  5.—Hi,Amy.Why are you so upset? —Er,I found the washing machine I had repaired 　　　　　　　　　again.  6.Three activities—skipping,jogging,outdoor aerobics(有氧运动),all of which are free of charge,will be 　　　　　　　.  7.He gave me a 　　　　　　　of what he had seen in the garden.  8.Natural methods of pest control are now 　　 　　chemicals. 

quarrel　

alike　

broke down

arranged　

description　

taking the place of