SC's Question number - 649 , 650

649). George’s personal diary and album formed the basis for his book about the places he had visited.

(A) the basis for his book about the places he had visited.

(B) the basis for his book regarding the places he had visited.

(C) the basis of his book about the places he visited.

(D) the basis of his book about the places which he had visited.

(E) the basis of his book about the places he had visited.


650). For many years the idea as to if the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas based on Dr. Wren's studies suggest that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exists as both an epidermal structure and as a subdermal structure.

(A) the idea as to if the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas based on Dr. Wren's studies suggest that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exists as both

(B) the idea as to whether the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas based on Dr. Wren's studies suggest that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exists as both

(C) the idea as to whether the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas based on Dr. Wren's studies suggests that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exists both as

(D) the idea if the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas basing on Dr. Wren's studies suggest that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exist both as

(E) the idea as to whether the Xenomorph employed an exoskeleton or endoskeleton plagued debates and discussions with unanswered questions; however, recent ideas based on Dr. Wren's studies suggest that the Xenomorph may employ an endo-exoskeleton: a skeletal structure that exists both as


Answers:

649). OA - C - right tense

Explanation: George’s personal diary and album formed the basis of his book (that he wrote) about the places (that) he had visited.

Here perfect tense is unnecessary in the sentence "he wrote about the places that he (had) visited"

We can do without it since there is no confusion regarding the timeline.

Further, in the reduced form, construction in E, with perfect tense, is highlighting an inappropriate sequence of actions: he visited those places before his personal diary and album formed the basis of his book.

650). OA - E - idiomatic - both as X and as Y

A, B - incorrect - unidiomatic

C - incorrect - subject verb agreement - ...recent ideas(plural) based on Dr. Wren's studies suggests(singular) that....

D - incorrect - subject verb agreement - .... a skeletal structure(singular) that exist(plural) both as...