Was it in 1997______he was still at middle school_______ this boy became an expert at computer?

What do you eat and_______

_____ the problem of land erosion getting more serious, the government is searching for a way to deal with it.[ ]

. She ought to stop work; she has aheadache because she ____ all day long.

She always thought that he was a stupidboy, so she was always ____ patiencewith him.[ ]