In manufacturing, cheaper materials are constantly being for the better, more expensive kind.
he boys followed the marks that they ________, until finally they found their way back to the campsite.
Tony lent me the money, ______that I’d do as much for him.
________ their heavy load, the two brothers walked along the river bank.
Many Chinese like watching People Who Moved China, which honors those _____ contributions should be remembered and learned from.
Research shows that teenagers ________ talk about their day with family members at the dinner table are less likely to engage in high-risk behavior.