We use "a" or "an" when referring to something for the first time or when the specific thing is not important. We use "the" when referring to the same thing again or when something is unique. Some exceptions include not using articles with meals, means of transportation, general concepts, or place names like countries and cities.

2. eg: He was working in a hardware .

3. With jobs: eg: He is a foreman

4. To talk about a person or thing for the first time:

5. eg: They've got a computer's address book

7. eg: She wrote it in the computer's address book.

8. With superlatives:

9. eg: She's the most beautiful girl in the world

11. Before the names of theatres, cinemas, museums, hotels,newspapers and organization s

12. But sometimes many names of important buildings and institutions are two words, and the first is usually the name of a person or a place. In these cases the article is omitted.

14. Seas

15. Rivers

16. Groups of islands

17. Mountain ranges

18. Desserts

20. eg.W omen are more intelligent than men

21. I prefer vodka to gin.

22. Before material and abstract nouns used in a general sense:

23. eg: Gold is a precious metal. Honesty is the best policy.

24. With noun+number

25. eg: 30% of 40, page 23, room 105

26. Our train leaves from Platform 7

29. go to bed, be in bed,

31. We heard the news on the radio and the documentaries on television

34. regions,states,provinces,

35. islands, towns and cities.

36. But we use the with Republic, Kingdom, States

37. Roads, streets, parks, shops and restaurants

38. Individual mountains and lakes