——Did you know any Chinese before you arrived in Beijing?——Never ________it, actually.
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.
. There's no bus now, and we can't get home _______ by taxi.