— If there are _____people driving, there will be ______air pollution.— Yes, the air will be fresher.

Paris, the capital of France, is one of the _________ cities in Europe.

 —Who is that boy?—Oh, he is Li Jing. He is ________ student in our class.

Tonny is the best student of the three. In other words, he is _______ student than the other two.

—Which do you like ________, pears or apples?—Apples.