Englishfor English speakers
the
Determiner
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Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
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Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
keep
Verb
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When you keep something for someone, you make something safe.
I will keep your money for you.
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When you keep something, you do not give it back.
Keep the change.
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When you keep safe, happy, quiet, etc, you stay that way.
Keep quiet.
keep
Noun
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A keep is a special safe area of a castle.
The king lived in the keep during the battle.