Children under fifteen are not permitted to see such kind of film _________ is bad for their mental development.
| A．as | B．what | C．which | D．that |
Ernest visited the South Pole because he wanted to see one of the _______regions in the world.
| A．colder | B．coldest | C．more coldly | D．most coldly |
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.
| A． | another | B． | other | C． | the other | D． | either |
We’re planning to send out a thousand invitations_______Expovolunteers.
| A．over | B．in | C．on | D．to |
In the 19th century the government _____ land to settlers willing to take care of it.
| A．advocated | B．separated | C．divided | D．distributed |
It ______ quite correct that happiness comes from thinking about things in a positive way.
| A．has turned out | B．has been turned out | C．is turning out | D．is turned out |