In my opinion, he is the second _________  sportsman in the world.

----What does your cousin look like now?----Oh, he is much ______ than before.

---If there are ______ people driving , there will be ______ air pollution.--- Yes, the air will be fresher.

Now the air in Yancheng is _______ than it used to be . We should do something to stop it .

The Voice of China became one of _________ TV shows last year.