If the computer should_____ within the first three years, we would repair it at our expense.

On the __________ first day, our teacher told us that it was vital that we __________ notes in English class.

He didn't ________ what I said because his mind was on something else.

 __________ sleep every night is important for teenagers. _________, loss of sleep can make you feel tired, and even cause you to put on weight.

It was unfortunate that their new car ____ halfway to the airport.