The diagram illustrates the development of cutting tools in the Stone Age between 1.4 million years ago and 0.8 million years ago. The figure shows how the period of the 
Stong
 Age. Correct your spelling
Stone
Overall
, it can be seen that the Stone Age of Linking Words
Tool
 A and Use synonyms
Tool
 Use synonyms
B
 both difference changed over time.
Looking at the figures, it can be seen that the structure in the front Use synonyms
view
 of Use synonyms
tool
 A is quite slim. Meanwhile, the features in the front Use synonyms
view
 of Use synonyms
tool
 Use synonyms
B
 are quite larger than those in the front Use synonyms
view
 of Use synonyms
tool
 A. Use synonyms
In addition
, the side Linking Words
view
 of both tools A and Use synonyms
B
 found that the side Use synonyms
view
 Use synonyms
B
 Use synonyms
has
 slim when Verb problem
was
which 
compared with the side Correct pronoun usage
apply
view
 Use synonyms
tool
 A. Next to the back Use synonyms
view
 found that the back Use synonyms
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 of Use synonyms
tool
 Use synonyms
B
 Use synonyms
has
 bigger Verb problem
is
more 
than Correct quantifier usage
apply
tool
 A.Use synonyms
  when
 comparing allow 5 cm. Capitalize word
 When
Finally
, compared Linking Words
about 
the colours of both found that Change preposition
apply
the 
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tool
 A a grey colours and Use synonyms
the 
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apply
tool
 Use synonyms
B
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 a 
light grey colour.Add a missing verb
is a