When Peter speaks in public, he always has trouble ______ the right things to say.
—How soon do you think the economy will recover? —________?
With few people _______ pigs, the price of pork ______.
—Here’s the key to my car.—Thanks, but I must know where you ______ it.
Come and see me whenever .
It’s the same in China—many people, some ______ are not overweight at all, are always going on diets or taking weight-loss pills, ______ are often dangerous.