851). The work of mathematician Roger Penrose in the early 1970s, on the geometry of what are called aperiodic tiles, turned out to describe the architecture of a previously unknown class of crystals.
(A) what are called aperiodic tiles, turned out to describe
(B) what is called aperiodic tiles, describes
(C) aperiodic tiles, describing
(D) so-called aperiodic tiles, describe
(E) aperiodic tiles, it turned out to describe
852). There are more than forty newspapers published in the cities of Kerala, a state on the Malabar Coast, which reflects the fact that Keralans are by far India’s most literate citizens.
(A) which reflects
(B) and that number reflects
(C) which reflect
(D) that number reflects
(E) that reflects
Answers:
851). OA - A
B - incorrect - ...tiles(plural)...describes(singular) - what + verb + subject ..in such constructions generally the number of verb is governed by the subject
C - incorrect - sentence fragment - The work.....describing
D - incorrect - subject verb agreement - here The work(singular subject)....describe(plural verb)
E - incorrect - ambiguous it - it can refer to work or geometry
852). OA - B - correct - and is required to join two independent clauses here
(A) what are called aperiodic tiles, turned out to describe
(B) what is called aperiodic tiles, describes
(C) aperiodic tiles, describing
(D) so-called aperiodic tiles, describe
(E) aperiodic tiles, it turned out to describe
852). There are more than forty newspapers published in the cities of Kerala, a state on the Malabar Coast, which reflects the fact that Keralans are by far India’s most literate citizens.
(A) which reflects
(B) and that number reflects
(C) which reflect
(D) that number reflects
(E) that reflects
Answers:
851). OA - A
B - incorrect - ...tiles(plural)...describes(singular) - what + verb + subject ..in such constructions generally the number of verb is governed by the subject
C - incorrect - sentence fragment - The work.....describing
D - incorrect - subject verb agreement - here The work(singular subject)....describe(plural verb)
E - incorrect - ambiguous it - it can refer to work or geometry
852). OA - B - correct - and is required to join two independent clauses here
2 comments:
prachi,
In the Question 851, u have eliminated the the option D due to the reason that "The work" is singular subject and "Describe" is plural. Then, how come u chose the correct option to be A. If u check the option A, it also includes the plural action "Describe". Please clarify.
Regards,
Rajesh
Ellipse the part unnecessary to the main idea and then analyse the options..
The work of mathematician Roger Penrose in the early 1970s turned out to describe the architecture of a previously unknown class of crystals - no grammatical error
Now apply the same to option D
The work of mathematician Roger Penrose in the early 1970s describe(s) the architecture of a previously unknown class of crystals
D is also changing the meaning of the sentence ..
Hope this helps..
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