Fill in the Blanks (Reading & Writing)

The modern sandwich industry now produces millions of pre-packed sandwiches every day for shops, cafes and vending machines. Manufacturers must carefully —selectselectingselectedselection fillings to survive refrigerated transport without becoming soggy. Consumer demand for convenient, ready-to-eat food has —growngrowinggrowgrows steadily for decades, and analysts expect this —trendtrendstrendytrending to continue as lunch breaks grow shorter and workers seek food that requires no —preparationpreparepreparingprepared.