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gmatjeet
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His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in what are now temperate areas
(A) in which great ice sheets had existed in what are now temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate
OA : B
I have understood all parts of the question. There is only one doubt which i have with the explanation.
OG says the verb form should be SIMPLE PAST "EXISTED" rather than PAST PERFECT "HAD EXISTED". I am unable to understand this.
"led" Louis Agassiz - past tense
concept of an age in which great ice sheets "had existed" - past perfect
As per me the above correctly shows chronological sequence of events.
Can some expert please explain?
(A) in which great ice sheets had existed in what are now temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate
OA : B
I have understood all parts of the question. There is only one doubt which i have with the explanation.
OG says the verb form should be SIMPLE PAST "EXISTED" rather than PAST PERFECT "HAD EXISTED". I am unable to understand this.
"led" Louis Agassiz - past tense
concept of an age in which great ice sheets "had existed" - past perfect
As per me the above correctly shows chronological sequence of events.
Can some expert please explain?
