how come originated and has been expanding parallel.
The Atlantic Ocean, the second youngest of Earth's five oceans, originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding ever since.
a. originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding
b. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue to move, expanding
c. had originated 130 million years ago as the Americas separated from Africa and, with Earth's plates continuing their motion, is expanding
d. had originated 130 million years ago because the Americas separated from Africa and, while Earth's plates continue to move, expanding
e. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue their motion, was expanding
Magoosh SC qn
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- conquistador
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Because ever since implies an action that started in the past and might still be happening, the PRESENT PERFECT tense is required.Mechmeera wrote:The Atlantic Ocean, the second youngest of Earth's five oceans, originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding ever since.
a. originated 130 million years ago when the Americas separated from Africa and, as Earth's plates continue to move, has been expanding
b. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue to move, expanding
c. had originated 130 million years ago as the Americas separated from Africa and, with Earth's plates continuing their motion, is expanding
d. had originated 130 million years ago because the Americas separated from Africa and, while Earth's plates continue to move, expanding
e. originated 130 million years ago with the Americas separating from Africa and, as Earth's plates continue their motion, was expanding
Only A offers the required tense:
The Atlantic Ocean...HAS BEEN EXPANDING ever since.
The correct answer is A.
A conjunction such as and must serve to connect PARALLEL FORMS:how come originated and has been expanding parallel.
VERB and VERB
ADJECTIVE and ADJECTIVE
NOUN and NOUN.
Verbs connected by a conjunction such as and do NOT have to be in the same tense.
OA: The Atlantic Ocean ORIGINATED 130 million years ago...and HAS BEEN EXPANDING ever since.
Here, and correctly links originated (a past tense verb) to has been expanding (a present perfect tense verb).
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- conquistador
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Hello Mitch,
I feel that since because "ever since" implies an action that started in the past and might still be happening,
using HAS BEEN EXPANDING again will make the sentence redundant.
In that case it should be
"originated and expanding".
Please explain.
Thanks
Meera
I feel that since because "ever since" implies an action that started in the past and might still be happening,
using HAS BEEN EXPANDING again will make the sentence redundant.
In that case it should be
"originated and expanding".
Please explain.
Thanks
Meera
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There is no redundancy: ever since MUST serve to modify a verb in the present perfect tense.Mechmeera wrote:Hello Mitch,
I feel that since because "ever since" implies an action that started in the past and might still be happening,
using HAS BEEN EXPANDING again will make the sentence redundant.
The OA to SC10 in the OG13:
The widely accepted big bang theory holds that the universe began in an explosive instant ten to twenty billion years ago and has been expanding ever since.
Here -- just as in the SC above -- ever since serves to modify has been expanding (present perfect).
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Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
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