1. Mary found that ______________ was always the best policy when she got involved in arguments with her husband.2. If you are not _________ with your present job, you should find out what you need to do to qualify for a better one.3. I’d like very much to buy the camera. ___________, I haven’t got enough money on me.4. No one else can tell you what is best for you because every ____________ is different.5. The operation was something of a _________, but without it it was just a matter of time before the cancer killed her.6. The policeman ________ his car round and sped after the fleeing criminals.7. Its charm and mild climate have made San Francisco an _____________ city for both business and residence.8. If you come to my office about twelve, we can have lunch together and meet the manager ____________.9. Egypt has a long cultural __________ which is deeply rooted in the history of the country.10. This stamp is __________: all others like it have been lost or destroyed.11. The computer science professor promised to help his students if new difficulties _________ in their research.12. The new office boy seemed smart and _________ when he reported for work.