________ to sunlight for too much time will do harm to one's skin.

Have you heard of it? Firefighters rushed into a burning house, three of them unfortunately _______ in and ________ their lives.

Those _____ to go to the exhibition should inform the office.

________ the right decisions _________ the future is probably the most important thing we’ll ever do in our lives.

Every minute is made full use of _________ our lessons before the exam.