I’m moving to the countryside because the air there is much fresher than      in the city.

I prefer to work here because salaries are higher here than ________ in my country.

As teachers, we feel______our duty to teach our children to be good wherever we are.

They told us that these small apples are often sweeter than big ____.

—Which of these shirts do you like best? — I’ll take       . They are all expensive and out of fashion.