It was cold outside but the door wouldn’t stay shut, so I put a chair _____ it.
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.
Frank put the mediocre in the top drawer to make sure it would not be_______ to the kids.