When Christine landed her job some years ago, she had to face a climate _____music classes were not the focus of learning. [ ]

As all people hope, we dream to set up a world_____ people from all countries are treated equally and different views and opinions are accepted.

He made clearthat he would take part in the sports meeting.

For most informal dinners，you should wear comfortable，______ clothes.

How did it ____ that humans speak so many different languages? [ ]