Passage 5　　● Read the following information about selling sandwiches.　　● Choose the best word to fill each gap. Mark one letter(A, B, or C)on your book.　　● Do not use any letter more than once.SANDWICH SUCCESS　　Britain’s sandwich business is expanding fast. Half the population buy sandwiches at least twice (29)______ week，and they are spending more (30)______ hem, (31)______ sandwiches are made at home，while (32)______ from shops are selling in growing numbers.　　One reason is that packaging keeps sandwiches fresh for up t048 hours，making (33)______ possible to mass-produce them centrally and distribute them widely. (34)______ reason is that petrol stations，wanting to expand the range of (35)______ they sell，have quickly become major outlets for sandwiches.　　The increase in sandwich sales has also been helped by changing social trends. Many people have stopped (36)______family meals at home, and (37)______ choose the time and place to eat. Time has become more important than price, (38)______ convenience is the most important reason (39)______ all.　　Taken together, these changes are making the sandwich industry (40)______ into a very valuable business.　　29. A the　　　 B. A　　　　 　C this　　30. A on　　　　B. At　　　　　C in　　31. A Either　　B Much　　　　 C Fewer　　32. A they　　　B. All　　　　 C those　　33. A it　　　　B them　　　　 C that　　34. A. Another　B Other　　　　C Next　　35. A which　　 B that　　　　 C what　　36. A have　　　B having　　　 C had　　37. A. Also　　 B instead　　　C. Alternatively　　38. A unless　　B whether　　　C. Although　　39. A of　　　　B for　　　　　C by　　40. A grow　　　B growing　　　C grown