_____ is known to us all that the sun rises in the east.
-- Ann is in hospital. -- Oh, really? I __ know. I __ go and visit her.
The population of Jiangsuto more than twice what it was in 1949. The figure is now approaching 74 million.
Some of you may have finished unit one., you can go on to unit two.
The government plans to bring in new laws _____ parents to take more responsibility for the education of their children.
The fact has worried many scientiststhe earth is becoming warmer and warmer these years.