To keep safe _______ an earthquake, you should remain at a spot in your room where nothing may fall on you.
_____ crying sadly, he raised his head and let tears stream down his face on purpose.
. ---Who will address the students from our school this evening? --- ______ to be the speaker.
Tommy had had a three-mile drive north _____ he could turn and head back south.
The scientists all agreed that rules of physics, ______ we are all familiar, govern the world.
The news _____the president was killed soon spread over the country.