SC-Lower level management

Lower level management function most effectively when they have thorough training and unimpeded communication with workers, supervisors, and one another.
A) management function most effectively when they have
B) managers function most effectively when they have
C) management functions most effectively when they have
D) managers function most effectively when they have received
E) management functions most effectively when it has

.
.
.
.
.
.
The meaning has to be seen here rather than

CR-Medical Journal

A medical journal used a questionnaire survey to determine whether a particular change in its format would increase its readership. Sixty-two percent of those who returned the questionnaire supported that change. On the basis of this outcome, the decision was made to introduce the new format. Which one of the following, if it were determined to be true, would provide the best evidence that the journal's decision will have the desired effect?
(A) Of the readers who received questionnires, 90 percent returned them.
(B) Other journals have based format changes on survey results.
(C) The percentage of surveyed readers who like the format change was almost the same as the percentage of the entire potential readership who would like format change.
(D) It was determined that the new format would be less costly than the old format.
(E) Ninety percent of the readers who were dissatisfied with the old format and only 50 percent of the readers who like the old format returned their questionnaires.

.
.
.
.
.
.
.
C

SC- Speculative Psychodynamic

It may be that by focusing primarily on a patient's mental condition and on vague and often very speculative psychodynamic factors, predictions about the patient's future behavior decrease in accuracy
A) predictions about the patient's future behavior decrease in accuracy
B) mental health professionals lessen the accuracy of their predictions about the patient's future behavior
C) the accuracy of predictions about the patients future behavior lessens
D) a decrease in accuracy is seen in predictions about the patient's future behaviour
E) the patient's future behavior can be predicted less accurately

.
.
.
.
.

B. This one is now a simple one....

SC-Art Museum

Art museums do not usually think of their collections as capital or consider the interest income that would be generated if a portion of the capital would have been invested in another form.
(A) be generated if a portion of the capital would have been
(B) have been generated if a portion of the capital would have been
(C) be generated if a portion of the capital were
(D) be generated if a portion of the capital was
(E) be generated if a portion of the capital had been

.
.
.
.
.
C.
This was ssilly mistake. I would have gone with C but while tackling the question I decided to take a gamble. It failed miserably :)

SC-Contrast

A peculiar feature of the embryonic mammalian circulatory system is that in the area of the heart the cells adhere to one another, beating in unison and adopting specialized orientations exclusive of one another.
(A) beating in unison and adopting
(B) they beat in unison while adopting
(C) beat in unison, and adopt
(D) beating in unison yet adopting
(E) even though they beat in unison and adopt

.
.
.
.
D
Here we need to have a contrast. The word and is incorrect in the underlined sentence and hence needs to be replaced with something like while/but/yet etc.

SC-Sociological Study

Everyone participating in the early sociological study committed a crucial methodological error by failing to fully consider alternative ways of classifying their data
A) by failing to fully consider alternative ways of classifying their
B) by failing fully to consider alternative ways of classifying their
C) they failed to consider alternative ways to classify their
D) by not fully considering alternative ways to classify the
E) by not considering fully alternative ways of classifying his or her

.
.
.
.

D is best
A B and C are out because "everyone" is singular and needs a singular referrent
E is out for misplacing adverb after verb "considering"

I still contend that this is perhaps not the correct explanation. Lets see what Pret has to say :)

SC-King Alfred

Just because King Alfred occupied and fortified London in 886 did not mean that he also won the loyalty of its citizens: the invading Danes were well aware of this weakness and used it to their advantage in 893.
(A) Just because King Alfred occupied and fortified London in 886 did not mean that he
(B) The fact that King Alfred had occupied and fortified London in 886 did not mean that he had
(C) Just because King Alfred occupied and fortified London in 886, it did not mean he
(D) The fact that King Alfred occupied and fortified London in 886, it did not mean that he
(E) Just because King Alfred had occupied and fortified London in 886, it did not mean he

.
.
.
.
.
B
Its the use of past perfect tense in B, and not the Just..as/The fact that... thing

Ans is E 

Ans - A 

SC- Italian Job

The combination of technique expertise, commercial enterprise, and that the government back them judiciously should ensure Italian firms continuing to grow
A) that the government back them judiciously should ensure Italian firms continuing
B) the government backing them judiciously should ensure Italian firms of continuing
C) judicious government backing should ensure that Italian firms will continue
D) the government’s judicious backing should ensure Italian firms that they will continue
E) the government judiciously backing should ensure Italian firms of being able to continue

SC- Carbohydrates

SC-Carbohydrates

G+ B1 103

SC-Usual

Ex: A mercedes is more expensive than usual for a car --> wrong
A mercedes is more expensive than is usual for a car --> sounds better

Warren Buffet is richer than usual for a human being --> wrong
Warren Buffet is richer than is usual for a human being --> sounds better

I believe the difference between the 2 is that the former is equivalent to normal and you usually intends "compared to the subject's self"
Ex: He is nicer than usual --> ok

The latter "is usual" is used to compare the subject, being part of a subgroup, to the overall group as shown in my examples.

Usage of Like

true, as far I know. "Like" is never used with clauses in standard English. usage with a noun is the best.
He runs like a gazelle.

Like is a preposition. It should be followed by an object to make a prepositional phrase.
here, in this SC too we are comparing 2 nouns.

The distribution of mass(object) within the core of the Earth, like that (this refers back to distribution)...

underlined makes a prepositional phrase.