One ______ what one owes. ( )

_____ in what position the engine stops there will always be at least one of the cylinders

One who travels in a foreign country and learns its language will______.A．find out what it

What we consider a luxury at one time frequently becomes a ______, many families find that

"What makes her so unhappy？"" ______one of her favorite books."A．Because she lostB．Because

What we consider a luxury at one time frequently becomes a ______; many families find that

—_______ —I don’t like bright color.A、What about the red one？B、What do you want to buy？C