¡¡¡¡41.
¡¡¡¡£¨a£© food packaging.
¡¡¡¡£¨b£© varieties of fish.
¡¡¡¡£¨c£© a new snack food.
¡¡¡¡£¨d£© an artificial food flavoring.
¡¡¡¡42.
¡¡¡¡£¨a£© its variety of colors.
¡¡¡¡£¨b£© its unusual texture.
¡¡¡¡£¨c£© the way it is sold.
¡¡¡¡£¨d£© its main ingredient.
¡¡¡¡43.
¡¡¡¡£¨a£© to preserve it longer.
¡¡¡¡£¨b£© to give it a particular taste.
¡¡¡¡£¨c£© to make it smoother.
¡¡¡¡£¨d£© to increase the fermentation.
¡¡¡¡44.
¡¡¡¡£¨a£© its low purchase price.
¡¡¡¡£¨b£© its wide availability.
¡¡¡¡£¨c£© its good nutritional value.
¡¡¡¡£¨d£© its higher water content.
¡¡¡¡45.
¡¡¡¡£¨a£© its bland flavoring is healthful.
¡¡¡¡£¨b£© it can be stored a long time without spoiling.
¡¡¡¡£¨c£© it goes well with fish dishes.
¡¡¡¡£¨d£© a high grade of fish is used in its preparation.
¡¡¡¡46.
¡¡¡¡£¨a£© in a few weeks.
¡¡¡¡£¨b£© in two or three months.
¡¡¡¡£¨c£© in about two years.
¡¡¡¡£¨d£© in ten years.
¡¡¡¡47.
¡¡¡¡£¨a£© count money.
¡¡¡¡£¨b£© read and write.
¡¡¡¡£¨c£© draw moving objects.
¡¡¡¡£¨d£© hunt and farm.
¡¡¡¡48.
¡¡¡¡£¨a£© teachers came to children's homes.
¡¡¡¡£¨b£© children acquired the information they needed by direct experience.
¡¡¡¡£¨c£© children taught one another in small supervised groups.
¡¡¡¡£¨d£© parents instructed their children in the 'three r's.'
¡¡¡¡49.
¡¡¡¡£¨a£© a new dependence on people far away and the use of money.
¡¡¡¡£¨b£© the introduction of a new alphabet and numerical system.
¡¡¡¡£¨c£© outmoded methods of farming and ineffective means of transportation.
¡¡¡¡£¨d£© larger family units and greater financial hardships.
¡¡¡¡50.
¡¡¡¡£¨a£© the various means of survival taught by parents in contemporary society.
¡¡¡¡£¨b£© the importance of history instruction in the first schools.
¡¡¡¡£¨c£© the increasingly complex skills subsequently taught in schools.
¡¡¡¡£¨d£© the problems involved in the construction of new schools.
