The diagram below shows the development of the cutting tool in the Stone Age.

The diagram below shows the development of the cutting tool in the Stone Age.
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The given chart illustrates how the cutting
tool
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in the
stone
Capitalize word
Stone
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Age was developed 0.8 million years ago compared with 600,000 years earlier.
Overall
Linking Words
, there are not many
difference
Fix the agreement mistake
differences
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in the length and
with
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width
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of the two tools apart from the difference in the thickness of the ones from the
sideview
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side view
. Looking at
tool
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A, which is about 1.4 million years old, the appearance of it from the front view is triangular with a flat bottom. The length of it is about 10cm and its width is around 6cm. The thickness of
tool
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A is a bit high and its edge is bent which shows that there was not much refinement was put
in
Change preposition
into
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it Regarding
tool
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B, there is no difference between the size of
tool
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B compared with
tool
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A except its surface is a bit smoother, and the edge of it from the side view is straight and thinner, which shows that more refinement was put on it.
Submitted by hoangdaosales on

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Linking words: Add more linking words.
Vocabulary: Replace the words tool with synonyms.
Vocabulary: Rephrase the word "undefined" in your introduction.
Vocabulary: The word "compared" was used 2 times.
Vocabulary: The word "shows" was used 2 times.
Vocabulary: The word "difference" was used 3 times.
Vocabulary: The word "about" was used 2 times.
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