(2013·苏南四校3月联考)Everybody knows about it now! But no one knows ________ once prevented the rumor from spreading.

There is ____ as a free dinner in this world, as the saying goes, “No pains, no gains”

What do you think of the novel—-Oh, I _______ such a better book than before.

The water in the pool is dirty . Don’t swim in it .

He quite appreciated ____ to the ball at the palace.[ ]