________ was known to them that the boss had broken his promise ________ he would give them a rise.

The angry teacher theimpatient boy who was doing something that had nothing to do with what wasbeing taught.

Thousands of years ago people discovered the phenomenon by chance, and this was _____ the idea of the compass first came from

It sounds like something is wrong with thecar’s engine. _______, we’d better take it to the garage immediately.

While you were in London that year,the London Bridge______