Have you ever been to the US？Do you find anything a bit strange there？No matter how many times a European visits the US，he or she just （57） 　　get used to the culture there．Let's take a look at what they have complained（抱怨）about most．

"How are you？"is used as a greeting（问候），not a （58） 　　．When a shop worker in the US says"How are you？"，it's just a way of saying"Hello．"No matter how often this happens to European，they always think that the American are asking about their health or well being．Often，they will answer it and ask right back，and （59） 　　an answer．

In European countries，you only tip（给小费）after a meal if you are very（60） 　　with the service，or a tip is not expected．However，Americans would like to tip anyone in the service industry，（61） 　　waiters，drivers and hotel workers．And good service means a good trip．So for some Europeans，it is hard to find out how much they should tip and （62） 　　should be tipped．Certainly，it brings them a lot of trouble．