Can you imagine that rats eat 40 to 50 times _______.

We all agree that the products of this factory are of better ________.

 I don't think the charge for overhauling （大修）the equipment is excessive in _____ to its size.

It gave me a strange feeling of excitement to see my name in _____.

—I am afraid this pair of shoes is a little expensive．—If you really want to buy them, I will give you a ____ of 10 percent．