Water costs money．In some places water is hard 16 ．What 17 when a town has these problems？A small town in California found a happy 18 ．
Very 19 rain ever fell there．The town had no water 20 ．The water it used was 21 from a river 300 miles away．As more people 22 live in the town， 23 water was needed．Now water 24 to be brought in from 600 miles away．All these cost 25 money．
The town 26 a plan．It found 27 to clean its “dirty” water．Once the cleaned water was reused 28 many ways．Five 29 lakes were built．Here people could swim and fish and go 30 ．They 31 have picnics in their new parks．Farmers had more water 32 their crops．New factories can be built，now that they have the promise of 33 ．
In most places，water is used and thrown 34 ．The town that saved 35 water has saved the town！
16. A. supplying | B. getting | C. to get | D. to supply |
17. A. happens | B. happening | C is happened | D. happened |
18. A. key | B. answer | C answering | D. way |
19. A. little | B. a little | C. few | D. a few |
20. A. of itself | B. of its own | C. for its own | D for itself |
21. A. fetch | B. take | C. brought in | D. guided |
22. A. come to | B. came to | C. coming to | D. came for |
23. A. many | B. plenty of | C. more | D. many more |
24. A. has | B. had | C. must | D. needed |
25. A. many | B. a few | C. a great many | D. a lot of |
26. A. put | B. made | C. supply | D. noticed |
27. A. a way | B. ways | C. an answer | D. a key |
28. A. for | B. by | C. at | D. in |
29. A. man-making | B. man-make | C. man-made | D. man made |
30. A. boating | B. to boat | C. to boating | D. on boating |
31. A. must | B. could | C. needed | D. had to |
32. A. as | B. with | C. for | D. to |
33. A. water enough | B. enough water | C. crops enough | D. enough crops |
34. A. off | B. of | C. away | D. out of |
35. A. it’s | B. its | C. one’s | D. his |