Proofreading Exercise 16
Apes and Language
Print this sheet and mark the error type (see table at left) above the mistaken word or expression. Then write the correction on the line at the right. There is one mistake in ALMOST every line.
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____________(1)

____________(2)

____________(3)

____________(4)

____________(5)

____________(6)

____________(7)

____________(8)

____________(9)

____________(10)

Is the skill of language unique of humans? It really

depends of how we define it. It is easy to belittle the

ability of some apes to pronounce few simple words.

Some scientists say the teaching sign language is a

fairer test, since an ape's voicebox is much different

from our ones. Chimps can use over 130 signs to make

simple sentences and even invent words by them (such

as signing 'dirty' together 'good' to mean 'toilet'). Yet

critics claim they merely responding to their trainers'

prompts, rather than demonstrate real language skills.
Art
>Adj
>Adv
>N
>Vb
#
Prep
Pron
P
Sp
Vb

/\
Un
SS

___/-----
Article
to Adjective
to Adverb
to Noun
to Verb
Number
Preposition
Pronoun
Punctuation
Spelling
Verb

Insert
Unnecessary
Sentence
   Structure
Transpose
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