完形填空。 We find different kinds of animals in the world. Some animals, such as tigers and lions live in big forest and they are called 1 animals. Some others like sheep and dogs are 2 by men and they are called domestic (驯养) animals. These animals are very different from one another, but we can 3 them into big groups: those that eat other animals and those that eat grass and leaves. Animals like the 4 belong to the first group. Animals like cows, elephants and horses belong to the second group. Animals are 5 great use to human beings. Men 6 wild animals for their fur and meat. Domestic animals are 7 more important to men. Without them, life will be 8 . People make use of animals in many 9 . Cows and pigs are useful to men's 10 . They give 80% of the 11 men eat every year. Skin of some animals can be 12 into expensive overcoats and shoes, which are warm and comfortable and 13 a long time. They are very welcome in 14 countries. Wool, which is now one of the most important material for textile (纺织) 15 , comes from a special kind of 16 . From cows, we get milk. And we shouldn't 17 that some domestic animals are kept for transport. Many people 18 ride horses. Arabs ride on camels which travel in deserts for days without 19 . In some places animals are still used to plough field. 20 is clear that men just can't live without these animals. ( )1. A. wild ( )2. A. trapped ( )3. A. separate ( )4. A. chicken ( )5. A. with ( )6. A. hunt ( )7. A. quite ( )8. A. smooth ( )9. A. ways ( )10. A. life ( )11. A. meal ( )12. A. put ( )13. A. last ( )14. A. cool ( )15. A. business ( )16. A. sheep ( )17. A. forget ( )18. A. always ( )19. A. resting ( )20. A. That B. serious B. treated B. divide B. tiger B. to B. discover B. every B. difficult B. groups B. work B. meat B. turned B. cost B. cold B. workers B. dogs B. remember B. hardly B. drinking B. This C. terrible C. sold C. sell C. fish C. for C. raise C. even C. easy C. places C. family C. dinner C. made C. take C. warm C. industry C. cows C. realize C. still C. sleeping C. It D. fighting D. kept D. keep D. goat D. of D. care for D. some D. perfect D. kinds D. food D. animals D. changed D. dress D. foreign D. factory D. pigs D. notice D. just D. stopping D. So