解答 答案：Is，going to buy． 根據your mother--（buy） a new washing machine next week？--Yes，she is．可知下周你的媽媽將要買一個新的洗衣機嗎？是的，她打算．根據時間next week可知句子用一般將來時態，根據回答，可知用be going to 結構，故填Is； going to buy．
17．A．It's"being polite" B．We look people in the eye C．When we leave our friends，we take time to say goodbye D．People have fair or dark hair，and many people wear glasses E．We don't stand very close to the person we are talking to
Most Americans are nice people．We are usually quite lively．We speak loudly and smile a lot（41）B，but we never stare---we think that's rude． Most Americans are very friendly．When we see someone we know，we usually say"Hi"or"How are you doing？"But remember"being friendly"is not"being friends"（42）A．It takes time to make good friends in the USA． We don't usually touch people very much．We sometimes shake hands when we say hello（43）E． Some Americans are quite tall，perhaps over 1.80metres．We have blue or brown eyes．（44）D．We are shy about our age．We never say we are old，only that we are not young anymore． （45）C．We say"See you soon"and"Call me!"or"Let's have lunch one day．"This is for being polite and friendly---it's not a real invitation!．
