Tham khảo tài liệu 'fundamentals of english grammar third edition part 71', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 8. Rats rabbits and mice can cause huge losses on farms by eating stored crops. Certain big birds like hawks help farmers by hunting these animals. 9. The feathers of certain kinds of birds are used in pillows and mattresses. The soft feathers from geese are often used for pillows and quilts. Goose feathers are also used in winter jackets. 10. The wing feathers from geese were used as pens from the sixth century to the nineteenth century when steel pens were invented. EXERCISE 20 p. 170. 1 Whales . . . fish . . . fish . . . mammals . . . Mice . . . tigers 2 beings . . . examples . . . mammals . . . Whales . . . animals 3 dogs . . . chimpanzees . . . seas oceans . . . rivers whales 4 fish . . . Fish . . . eggs . . . offspring . . . Mammals . . . birth 5 offspring 6 kinds . . . whales . . . whales . . . creatures 7 whales . . . whales . . . feet . . . meters . . . length 8 tons . . . kilograms . . . whales . . elephants 9 dinosaurs . . . heart . . . whale 10 size . . . car . vessel . . . aorta 11 person 12 beings . . . whales . . . times 13 people . . . whales . . . enemies . . . people 14 hunting . . . whales EXERCISE 21 p. 172. 2. me 7. me . . us . . .We 3. I 8. them . . . They are 4. I 9. She . . . me 5. it 10. me . . He . 1 6. them EXERCISE 22 p. 172. 3. They . . . her 4. it . . . it . . . him . he 5. it 6. they . . . them . . . they 7. them . . . they 8. it 9. it . It 10. them . . They . . . They . . . them EXERCISE 23 3. daughter s 4. daughters 5. man s 6. woman s 7. men s p. 174. 8. women s 9. people s 10. person s 11. earth s 12. elephant s 13. teachers 14. teacher s 15. enemy s 16. enemies 17. Chris s or Chris EXERCISE 24 p. 174. 3. Babies 4. baby s 5. caller s 6. receptionist s . . . callers 7. yesterday s . . . today s 8. The pilots EXERCISE 25 p. 175. 3. leaves 4. mother s 5. Potatoes 6. birds . . . teeth 7. Tom s 8. thieves . . . Mr. Lee s 9. Mountains . . . valleys 10. child s 9. earth s 10. Mosquitoes 11. mosquito s 12. animals 13. animal s 11. .
