Certain
are
that it is good to do
Add an article
an experiment
the experiment
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experimentFix the agreement mistake
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ofChange preposition
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on
before human use
others believe that
is not a correct approach.
is
aChange the article
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cheapest method to check
Correct article usage
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effects of drugs, I believe that
have life and
they Correct pronoun usage
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should not be killed.
On one hand, it is one of the simplest and
time savingAdd a hyphen
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techniqueFix the agreement mistake
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to check
weatherCorrect your spelling
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will
safeAdd a missing verb
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for
human'sChange noun form
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use. Most
of Change preposition
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'
body workCorrect your spelling
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asCorrect your spelling
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sameCorrect article usage
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as human body work,
as
.
,
scientistFix the agreement mistake
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can examine the changes
onChange preposition
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living
organismFix the agreement mistake
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because of
before implementing it
onChange preposition
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public.
, Oxford
atChange preposition
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London
develop
for cancer treatment by doing testing on
, saving lots of lives.
On
otherCorrect article usage
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hand,
take breath means they are
a Correct the article-noun agreement
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living things and
makingVerb problem
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their life
onChange preposition
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risk is not right.
SignificantChange the article
A significant
The significant
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number of
killedAdd a missing verb
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every year
performing
Add an article
the experiment
an experiment
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experimentFix the agreement mistake
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, leading to
eliminationAdd an article
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of various
animal'sChange noun form
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species.
,
naturalAdd an article
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food chain is in danger because of
distinctionCorrect article usage
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of some
'
familyFix the agreement mistake
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.
, a study done by
AmericanCorrect article usage
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University found that
in Change preposition
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every
calenderCorrect your spelling
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year, nearly one million
are killed because of
testing, causing
declineAdd an article
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in
Correct article usage
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animal'sChange noun form
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.
, testing of drugs
areChange the verb form
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important to check its negative effects but it should not be done on
. Other methods should
be findChange the verb form
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to save living organism's life.