To know more about the British Museum, you can use the Internet or go to the library, or _______. 

______ is often the case is that Tom doesn’t study hard and fails in passing an exam.

   I know nothing about him except that he works in ____company.

I’m moving to the countryside because the air there is much fresher than ________ in the city.

The telegram has faded out in our life now, and gone with____ are telegraph operators.