In English class, our teacher often creates an environment _____________ we are given the opportunity to solve problems ourselves.
To use a foreign language effectively, you need to understand the culture________ it is spoken.
In Singapore, people who litter and dirty the streets are more likely ________.
Thanks to Ms Smith, the father and the son eventually________ after ten years’ cold relationship between them.
The income of skilled workers went up. ________, unskilled workers saw their earnings fall.
After dinner he gave Mr. Richard ________ ride to ________ Capital Airport.