The notice says “No Photos!” so reporters must ask _____ before taking photos inside the museum.

To make members of a team perform better, the trainer first of all has to know their _____ and weaknesses.

It is said that dogs will keep you _________for as long as you want when you are feeling lonely．

  Being honest is usually thought of as a virtue and undoubtedly this is the ________.

As a result of destroying the forests, a large ________ of desert ________ covered the land.