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缺词填空。 What must you do when you get a present for your birthday? You have to sit down and w 1 a thank-note. The words 'thank you' are very important. We have to use them very o 2 We say them when someone gives us a drink, h 3 us to pick up things, or lends us a book. Another i 4 word is 'please'. Many people forget to use it. It is not polite to ask someone to do something without s 5 'please'. We have to use it w 6 we ask for something, too. It may be a book or a pencil, more rice or help. We have to l 7 to say'sorry', too. If we hurt (伤害) someone, we'll have to go up to say 'we're s 8 '. When we forget something, we will a 9 say 'sorry'. These three words are easy b 10 important. Our children must learn to use them. They are pleasing (高兴的) words to use in any language (语言). 1.______ 2.______ 3.______ 4.______ 5.______ 6.______ 7.______ 8.______ 9.______ 10.______