Shopping habits in the United States have changed greatly in the last quarter of the tewentieth century. -1- in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was -2- on both sides with many -3- businesses. Here shopper walked into stores to look at all sorts of merchandise: colthing, furniture, hardware, groceries. -4-, some shops offered -5-. These shops included drugstores, shoe-repair stores, and barber or hairdressing shops. -6- in the 1950s, a change began to -7-. Too many automobiles had crowded into Main Street -8- too few parking places were -9- shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces -10- the city limits. Open space is what their car-driving customers needed. And open space is that they got -11- the first shopping center was built. Shopping center, -12- malls, started as a collection of small new stores -13- congested city centers. -14- by hundreds of free parking spaces customers were drawn away from -15- areas to our lying malls. And the growing -16- of shopping centers led -17- to the building of bigger and better-stocked stores -18- the late 1970s, many shopping malls had almost developed into small cities themselves. In addition to providing the -19- of one shop shopping, malls were transformed into landscaped parks, -20- benches, fountains, and outdoor entertainment. 

1. [A] As early as　[B] Early 　[C] Early as[D] Earlier

2. [A] built [B] designed 　[C] intended[D] lined 

3. [A] variable [B] various 　[C] sorted　[D] mixed-up 

4. [A] As well　[B] Beside [C] In addition　[D] Apart from 

5. [A] medical care [B] food [C] services[D] cosmetics 

6. [A] Suddenly [B] Abruptly [C] Contrarily　[D] But 

7. [A] be taking place　[B] take place [C] be taken place　 [D] have taken place 

8. [A] while [B] yet [C] though　[D] and then 

9. [A] used by　[B] ready for [C] available for [D] available to 

10. [A] over [B] from [C] out of　[D] outside 

11. [A] when [B] while [C] since[D] then 

12. [A] that as　[B] or rather [C] or　[D] and 

13. [A] out of　[B] naxt to [C] away from[D] near 

14. [A] Attracted [B] Surprised [C] delighted[D] Obsessed 

15. [A] inner [B] central [C] shopping[D] downtown 

16. [A] fame [B] distinction [C] popularity　[D] liking 

17. [A] on　[B] in turn [C] by turns [D] further 

18. [A] By　[B] During [C] In　[D] To 

19. [A] cheapness [B] convenience [C] readiness [D] handiness 

20. [A] because　[B] and [C] with [D] provided