I graduated from college twenty years ago and I ____________ as an English teacher in this middle school ever since.
Have you got________books for the train journey?
This is the way________I have thought of to solve the problem.
A government,which is responsible for society,must________to its people how important the method is to prevent AIDS.
His mother had thought that it would be good for his character to________from home and earn some money on his own.
We live in an age________many things are done on computer.