Please can you tell me what this analysis for ?

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Hello
My PC got infected with a ransom virus three months ago and all my files got encrypted .
I recovered most of the files; however, this file which it seems to me ( GMAT sentence correction ) is still unknown for me because it does not contain questions but only ( explanations ) or perhaps because of the virus, the information is being ( not completed ) '
The file pdf contains 26 pages
Here are some pages of it
Please if anyone knows the original doc let him tell me soon
Thank you in advance
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11. The diet was ‘largely vegetarian’. Logically, we can infer that ‘occasionally’ the diet included
some non-vegetarian items. The underlined part uses an adverb ‘rarely’ to describe a noun.
An adverb cannot describe a noun; it can only describe a verb or an adjective. Choice A
cannot be picked. Choice D is the best answer using the phrase ‘meat as a rarity’ to
suggest that ‘meat was consumed on occasion’. “Rarity” is the condition of being rare or
uncommon. Choice B communicates the same idea but uses ‘meat’ as the subject of the
independent clause. Ideally, the diet should continue to be the subject of the sentence. Also,
‘meat was rare’ could also mean that ‘meat was not well cooked’. Choice C uses ‘rare’ as an
adjective. “Rare” as an adjective can have several meanings: uncommon or unusual(rare
phenomenon); excellent (rare scholar); thin (rare air). We do not know with what meaning
the adjective ‘rare’ is used in this choice. Choice E uses the adjective ‘raw’ (uncooked) to
describe ‘meat’. Did the diet include ‘uncooked meat’? Can you see the problem with this
choice?
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12. The underlined part uses the indefinite list identifier ‘LIKE’ and uses the phrase ‘areas like
those of finance and marketing’. The pronoun ‘those’ replaces ‘areas’, and the expression
reads ‘areas like the areas of marketing and finance’. We should be looking for an
expression along the lines of ‘areas such as marketing and finance’ , using the definite
list identifier ‘such as’. Choice B uses the definite list identifier ‘such as’ but continues to use
‘areas such as the areas of’ form. Also, choice B uses the present participle ‘are majoring’ in
one place and the present perfect ‘have become’ in the later part. Choice C takes care of all
problems: uses the definite list identifier ‘such as’, correctly uses ‘areas such as X and Y’
form, and uses the present tense ‘major’ to express the current activity, and the present
participle ‘are becoming’ to express an ongoing current phenomenon. ‘more and more’ is
synonymous with the adverb ‘increasingly’ (which means ‘to a greater degree’). Choice D is
very similar to choice C except that it uses the form ‘areas of X and Y’ instead of ‘areas such
as X and Y’. The phrase, “Areas OF X and Y”, suggests ‘subdisciplines’ of marketing and of
finance. An area of marketing could be ‘international marketing’ or ‘advertising’ whereas
marketing could cover all aspects of the science of marketing. Therefore, ‘areas such as
marketing’ is more specific and clear statement than is ‘areas of finance and marketing’.
Choice E uses the modifier ‘having majored’ to describe the ‘students’; a present perfect use
of ‘who have majored’ might have been more acceptable. It also uses the verboten ‘being’:
“They are being increasingly successful” is awkward. “They are more and more successful” is
the required elegant expression. Choice C is the best answer
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13. “Inuits of the Being Sea were isolated from contact with Europeans longer than WERE/FROM
the Aleuts or the Inuits” is the form in which the sentence needs to be written. We need to
throw in a verb ‘were’ or the preposition ‘from’ after ‘longer than’. Also, ‘they were isolated
from contact with Europeans’ is the idiomatic form, not ‘they were in isolation from contact
with Europeans’. Choice D is the best answer using the verb ‘were’ to suggest that ‘one
group was isolated from Europeans longer than WERE the other two groups’. Choice B uses
the illogical ‘greater than’ to qualify ‘period’, and does not use the required verb ‘were’ after
the comparative conjunction. Choice C uses the idiomatic ‘were isolated from contact with
Europeans’ but fails to use the required ‘were’ after the comparative conjunction to logically
express the length of separation of the two groups. Choice E needlessly uses the ‘either.. or’
form: “Either…Or” is used to express a choice or an option. In this sentence, there is no such
information of choice implied or openly expressed. Choice D is the best answer. REMEMBER:
WHEN YOU USE COMPARATIVE CONJUNCTION, BE SURE TO USE AN APPROPRIATE VERB
OR PREPOSITION AFTER THE COMAPARATIVE CONJUNCTION. (“American has more modern
military equipment than DO the European nations’.) Also, when using comparative
conjunction to express ‘now versus then’ information, be sure to write the subject and the
verb after the comparative conjunction. (“I have more friends now than I DID five years
ago’ is the correct expression; not ‘I have more friends now than five years ago’. Remember
these rules and consciously apply them.
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“Once the usefulness was demonstrated and its superiority to X (was) proved’ is the required
form. Notice that we can suppress the use of the linking verb ‘was’ the second time around
because it is expressly used in the first dependent clause. The underlined part unidiomatically
uses the present continuous ‘being’ instead of the clear past tense verb ‘was’ (Remember:
“Being” is a verboten word). Choice B uses the unidiomatic ‘superiority over’ phrase. It
should be ‘superiority to’. Choice C uses the modifier ‘having been’ after ‘horse’. “Horse
having been proved’ describes a ‘proved horse’ and sounds awkward. Be suspicious of the
‘having been’ form used after a noun because it will act as the modifier describing the noun.
Choice D is the best answer using the idiomatic ‘superiority to’ form, and the concise
expression suppressing the repeat of ‘was’ after the first use. Choice E also uses a modifier
form describing the horse: “horse being proved” talks about a ‘horse’ that is in the process of
being examined or proved. Do you see the problem here? You should. Choice D is the best
answer.
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15. The underlined part uses ‘that’ to qualify a place. We require the idiomatic ‘where’ to qualify
the state, which is a place. There are three options using the required ‘where’. Choice B,
however, is not good because it uses the run on form: “It is a state where the population of
wolves is sizable this predator remains….” There is no proper connector between the two
independent clauses ‘the population is sizable’ and ‘this predator remains the archenemy’.
Choice C uses ‘with’ instead of the required ‘where’ after ‘states’ but uses ‘where’ after
‘population’. Choice D takes care of all objections and uses the required ‘where’ after ‘states’,
and repeats the relative pronoun ‘where’ after the appropriate conjunction ‘and’ used to
combine two independent clauses. Choice E uses the appropriate ‘where’ but uses the plural
‘exist’ to go with singular noun ‘sizable population’. Also, we need to repeat ‘where’ after the
conjunction ‘and’ to refer back to the States. Choice D is the best, parallel form.
16. The dependent clause that starts the sentence uses the subjunctive verb ‘require’ and the
underlined part appropriately uses the connector ‘that’ to introduce an independent clause
using a subjunctive form. The sentence as written uses the linking verb ‘are’ whereas we
require the subjunctive linking verb ‘be’ in an independent clause describing a subjunctive
verb such as ‘require’. Choice B uses the appropriate ‘be’ form of the subjunctive linking verb
but the use of ‘so as to rebut’ is unclear: Who will rebut the testimony? This question is
unexplained. Choice C takes care of this objection, and states that the ‘defendants’
will rebut the testimony . It uses the subjunctive linking verb ‘be’ as required. Remember:
The choice you need to pick must be clearly expressed. Also remember that GMAT abuses
‘SO AS TO’ phrase, and any chocie using this phrase is not likely to be a good option. Choice
D uses ‘should’ in a subjunctive sentence. In fact, ‘should’ is unacceptable in any GMAT
sentence. “Should” has the connotation of ‘obligation’ or ‘recommendation’. (‘You should
behave’ (obligation) or ‘you should take the test by October’ [recommendation]). An
expression of obligation or recommendation using ‘should’ is redundant or incompatible in a
subjunctive sentence. Choice E uses the linking verb ‘are’ in a subjunctive sentence instead of
the required subjunctive linking verb ‘be’. Choice C is the best answer.
17. The sentence starts off in a noun, Quasars, followed by a comma and a modifier describing
the ‘Quasars’. Notice that the underlined part should have a verb at the head to LINK quasars
to the described belief. Choice D provides the required linking verb ‘are’ and completes the
sentence. Choice B also provides a present perfect verb ‘have been’ and the unidiomatic
‘considered as’. The belief is current and the use of verb in present tense as used in choice D
is the most appropriate use. None of the other remaining options provide the required verb
at the head of the underlined part.
18. There are two parts to the sentence: The first part describes the views of those who own the
film rights about ‘colorization of black and white films’, and the second part describes the
views of the critics. The underlined part begins immediately after ‘works of art’ and uses the
relative pronoun ‘which’ directly replacing the ‘works of art’. The underlined part would have
us believe that the ‘works of art’ they liken to putting lipstick on a Greek Statue.
The works of art not compared to or likened to putting lipstick on a Greek statue;
the colorization of the works of art is. The sentence is not clearly written. Choice
B continues to use ‘which’ at the head of the underlined part and does not express
the idea any more clearly than does choice A. In fact, choice B states that ‘the
works of art is like putting lipstick on a statue’. Notice the use of a singular ‘is’ to
link the plural ‘works’ with the characteristic. Choice C takes care of the problems
by using a participial modifier ‘likening the process to putting lipstick on a
stature’ to describe the views of the critics. Choice C is the best answer. Choice D
has the same participial form but uses the verboten ‘being’: “ LIPSTICK BEING
PUT ON A GREEK STATUE” is an expression that describes a special kind of lipstick
used on a Greek Statue. Stay away from answer choices using ‘BEING’. Choice E
uses a dangling dependent clause without any independent clause to go with it. It
neither describes the noun phrase ‘works of art’ nor makes a logical comparison
between ‘Greek statue’ and something else.