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　　In writing exercises in English classes my students frequently raise the topic of friendship．　　1　　 what they write, I start to understand Chinese friendship obligation(义务)．For instance, 　　2　　 a student wrote that she 　　3　　 that her friend wanted to go shopping．My student was busy and 　　4　　 had no time to do that, but she kept silent, put her work 　　5　　 and went shopping with her friend．Sometimes they write about middle school friends and 　　6　　 the closeness they feel when they are together．Sometimes they write with great 　　7　　 when they feel they are no longer close to someone they 　　8　　 a friend．All this is quite different from 　　9　　 American young people would say about friendship．

　　In the United States you can certainly 　　10　　 a friend to do something with you, but you would not expect a friend to recognize and respond to your wishes without 　　11　　 them．Nor would you expect a friend to drop 　　12　　 to respond to a non-urgent need such as going shopping．　　13　　 an American friend would feel that he had imposed(把……强加)too 　　14　　 if the friend gave up a real need to study to go shopping．There are 　　15　　 to what you can expect from a friend．In the U．S．you feel 　　16　　 to ask your friend for help, but you recognize that the friend may say 　　17　　．A friend in China is someone who, 　　18　　 that you are in need in some way, offers to assist you without waiting to be asked．In China there are 　　19　　 limits on what you can ask or expect of a friend．You can feel free to tell your friend what he 　　20　　 she can or should do to help you or please you．

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