While she was in Paris, she developed a _____ for fine art.

The more one is ______ the English-speaking environment, the better he or she will learn the language.

  ----Why don’t you ______ to a more sensible method? ----Well, I’m thinking about it.

  The shopping mall is making every effort to ________ new customers in order to sell more foods.

China’s population is about       of the world’s.