Some pre-school children go to a day care center, _____ they learn simple games and songs.
Ernest visited the South Pole because he wanted to see one of the _______regions in the world.
It is said that two man-made structures are clearly visible from space. One is the Great Wall of China, andis Japan's Kansai International Airport.
We’re planning to send out a thousand invitations_______Expovolunteers.
In the 19th century the government _____ land to settlers willing to take care of it.
It ______ quite correct that happiness comes from thinking about things in a positive way.