Part 1 continue=Correction of errors and reasons
The articles (a, an, the)
1) Where are books we had bought together?
Where are the books we had bought together?
2) Muslims of the world should unite.
The Muslims of the world should unite.
3) Gold which you have given us is really pure.
The Gold which you have given us is really pure.
4) We cannot doubt honesty of these brothers.
We cannot doubt the honesty of these brothers.

Reason we place the definite article before a noun when we want to particularize it (name it specially) or refer to it.
1) W e should help poor.
W e should help the poor.
2) Strong should not trouble weak.
Strong should not trouble the weak.
Reason we place the definite article before adjectives of quality like poor, rich, strong, weak etc to make them plural nouns. Thus the poor means poor people, the rich means reach people , the strong means strong people etc
1) Sun rises in east.
The Sun rises in east.
2) Moon is smaller than earth.
The Moon is smaller than earth.
3) North Pole is as cold as South Pole.
The North Pole is as cold as South Pole
Reason we place the definite article before the names of objects of universal importance or heavenly bodies like the sun, the moon, etc (proper nouns like venus and Jupiter won’t take the definite article.

1) The woman is as brave as the man.
Woman is as brave as the man.
Reason when woman and man are made to represent the whole human race we don’t place the definite article before them.

1) Slower you move, greater the time you take.
The Slower you move, the greater the time you take.
2) Higher your income, better your food.
The higher your income, the better your food.
3) Harder you work, greater your reward
The Harder you work, the greater your reward.
Reason we place the definite article before adjectives and adverbs like slower, higher, harder, better, greater in the above sentences when one action or bird when it is made to represent its whole class.

1) Horse is a fast running animal.
The Horse is a fast running animal.
2) Cat is not a faithful as dog.
The Cat is not a faithful as the dog.
Reason The is placed before the name of an animal or bird when it is made to represent its whole class.

1) She is most intelligent girl here.
She is the most intelligent girl here.
2) Which is oldest building in the city?
Which is the oldest building in the city?
Reason we place the before an adjective in the third (superlative) degree. For example most intelligent, oldest, wisest etc.

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