The teacher told me that the light ______ faster than sound

It knowledge is power, ____Sir Francis Bacon wrote in 1579, ______ perhaps creativity ca be described as the ability to use that power.

Many students don’t know the key to _____ their English is to practice more. [ ]

Must we keep the room_______ all the time —No, you don’t have to.

Everyone was _________ when they heard the _______ news.