Englishfor English speakers
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
chunk
Noun
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A chunk is a part of something that has been separated.
The statue broke into chunks.
of
Preposition
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Made using.
It is a house of cards.
change
Verb
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If you change something, you make it different than before.
Ellen changed the sentence so that it was correct.
change
Noun
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A change is when something becomes different.
The building plan required some small changes.
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When you get change for a bill, you get smaller bills or coins that equal the amount of the original bill. For example, if you get change for a $5 bill, you may get five $1 bills or you may get four $1 bills and coins that add up to $1 or you may get some other combination of bills and coins.
Can I get change for this $100 bill please?
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A change is a replacement.
I brought a change of clothes, just in case.