Switzerland is one of the more developed countries in Europe. It is well known ___1___ one of the cleanest countries in the world. The Swiss think that ____2____ is very important. The government has made laws which ___3___ everyone to recycle( 循环再利用). In 1998, the Swiss government passed a law which said that people could not ___4_____ away any electronic machines. ____5____, 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 ____6_____ be used are thrown away. The government also charges a rubbish bag tax(税收). If people want their rubbish _____7_____, they must buy yellow stickers and put them _____8____their rubbish bags. In 2003, 47% of all rubbish in the cities was recycled. This ____9______ 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 ___10___ habit for the Swiss. Many countries should learn from the ___11_____. However, recycling in Switzerland is not without problems. In 2002 , street workers in Bern stopped collecting rubbish for 24 hours _____12____they thought that people were not as careful about recycling their rubbish as they should be. People were ___13_____ that so much rubbish was lying in the streets, and visitors ____14_____ 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____15___ everyone’s responsibility to keep the city clean.

1. A. for                              B. as                     C. to                                   D. by

2. A. cleaning                B. cycling              C. recycling                  D. reproducing

3. A. want                           B. need                  C. allow                       D. require

4. A. put                              B. take                  C. throw                      D. fly

5. A. Instead                        B. But                   C. However                  D. So

6. A. can’t                        B. shouldn’t           C. mustn’t                    D. needn’t

7. A. to collect                     B. collect               C. collecting                 D. to be collected

8. A. on                               B. up                     C. out                          D. off

9. A. included                B. including           C. meant                      D. meaning

10. A. strange                      B. daily                  C. usual                        D. often

11. A. example                     B. life                 C. thoughts                   D. mind

12. A. so                             B. because             C. so that                            D. until

13. A. unhappy                     B. satisfied             C. sorry                       D. surprised

14. A. to                              B. from                 C. of                            D. at

15. A. it’s                                   B. that’s                C. it                           D. it was