摘要： Which of the following is not used for giving advice?A. You had better not watch a horror film since you get scared easily.B. You mustn’t give your goldfish too much food.C. The swimming pool isn’t open today. I don’t know where to go swimming.D. Perhaps you should buy some souvenirs for your parents.Switzerland is one of the more developed countries in Europe . It is well known 41 one of the cleanest countries in the world. The Swiss think that 42 is very important . The government has made laws which 43 everyone to recycle. In 1998, the Swiss government passed a law which said that people could not 44 away any electronic machines. 45 , people were told to bring old ones, such as televisions, computers and fridges , to special centers when they didn’t need them. Many parts of the old machines are used again, and the parts that 46 be used are thrown away. The government also charges a rubbish bag tax. If people want their rubbish 47 , they must buy yellow stickers and put them 48 their rubbish bags. In 2003, 47% of all rubbish in the cities was recycled. This 49 70% of paper, 95%of glass, 71%of plastic bottles and 85-90%of cans. Until recently, people could get a small amount of money when they recycled their bottles. Recycling has become a 50 habit for the Swiss. Many countries should learn from the 51 . However, recycling in Switzerland is not without problems. In 2002 , street workers in Bern stopped collecting rubbish for 24 hours 52 they thought that people were not as careful about recycling their rubbish as they should be. People were 53 that so much rubbish was lying in the streets, and visitors 54 Bern were disappointed to find the city was not as clean as they thought. The street workers hoped that people from Bern would learn that 55 everyone’s responsibility to keep the city clean.

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