SC's Question number - 673 , 674

673). Studies of circadian rhythms can be applied to problems ranging from chronic insomnia in frequent transcontinental air travelers to workers in all-night plants being inefficient.

(A) to workers in all-night plants being inefficient

(B) toward workers in all-night plants being inefficient

(C) to workers in all-night plants who are inefficient

(D) to combat worker inefficiency in all-night plants

(E) to decreased efficiency among workers in all-night plants

674). Students in the metropolitan school district lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming ever more dependent on information-based industries.

(A) lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming

(B) lack math skills to a large enough degree that they will be difficult to absorb into a city’s economy that becomes

(C) lack of math skills is so large as to be difficult to absorb them into a city’s economy that becomes

(D) are lacking so much in math skills as to be difficult to absorb into a city’s economy becoming

(E) are so lacking in math skills that it will be difficult to absorb them into a city economy becoming


Answers:

673). OA - E - parallel and idiomatic - ..from X to Y - ... from chronic insomnia in frequent transcontinental air travelers to decreased efficiency among workers in all-night plants

A, B, C - incorrect - violating parallelism

B - incorrect - unidiomatic

D - incorrect - changes the meaning

674). (OG 10th Ques no - 103) - OA - E
OE:
A, B - incorrect - lack is modified by a wordy and awkward construction, to such a large degree as to make it difficult to.

B - incorrect - to a large enough degree that is unidiomatic.

C - incorrect - ungrammatical because it uses lack as a noun rather than as a verb: the phrase beginning Students... becomes a dangling element, and them
refers illogically to skills rather than students.

A, B, C - incorrect - all three choices fail to use one or both of the "-ing" forms
are lacking and becoming; these forms are preferable to lack and becomes in describing progressive and ongoing conditions.

D - incorrect - uses the "-ing" forms, but so much... as to be difficult to absorb is an awkward and unidiomatic verbal modifier.