【正文】
important C. necessary D. useless 17. A. study B. work C. learning D. aim 18. A. growing B. growth C. future D. tomorrow 19. A. ability B. possibility C. interest D. chance 20. A. develops B. learns C. goes D. works 答案: 1. D 11. C 2. C 12. B 3. A 13. A 4. B 14. C 5. A 15. D 6. C 16. A 7. A 17. C 8. D 18. B 9. C 19. D 10. B 20. D 。 Unit4 Public transport 完形填空練習(xí) 閱讀文章,了解其大意,然后選擇正確選項(xiàng)填