Astronomers have recently discovered an asteroid, 2002 NT7,

Question

Astronomers have recently discovered an asteroid, 2002 NT7, that has a diameter of about two kilometers  and, according to current calculations, it could strike Earth on  February 1, 2019.

A. and, according to current calculations, it could strike Earth on
B. and could, according to current calculations, possibly strike Earth on
C. and that, according to current calculations, could strike Earth on
D. and that, by current calculations, might strike Earth by
E. and, by current calculations, that it might possibly strike Earth on

doomedcat · Answer

Confused between C and D... Would select C though... That and that llel ... Could stike seems ok...

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kapil27singhal · Answer

I think option d convey the wrong meaning. According to option d.... The astroid could strike at any time between now and Feb 1, but the intended meaning of the sentence is that the astroid could strike on a particular date

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viv007 · Answer

Yes....it said scientist discovered ....so could be preferred i think..

Option C

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zishu912 · Answer

we can eliminate B and E, c seems more convincing

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123s4df · Answer

Can anyone tell me why not answer B?
B. and could, according to current calculations, possibly strike Earth on

snehakr1603 · Answer

Can someone explain why option B is wrong?

DmitryFarberMPrep · Answer

123s4df   snehakr1603

In part, B is wrong because "could possibly" is redundant. We can cut "might possibly" in E for the same reason. If we say that something COULD or MAY or MIGHT happen, we're already saying it's possible. Of course, people talk this way all the time, but the GMAT is more precise than that.

In particular, B is saying "An event could occur on February 1, 2019. What event? An asteroid possibly striking Earth." But we can't say that at a certain time, the asteroid will "possibly strike." Either it strikes or it doesn't. Rather, we'd say something like "It's possible that the asteroid will strike on Feb 1."

It's also useful that C and D start with "that." Technically, we can use "has" and "could" as parallel verbs. However, they're not terribly well-related: HAS is used for a passive clause describing the asteroid's size, while COULD is used for an active clause describing what the asteroid might do. Adding THAT turns these into two parallel modifiers, each of which provides a different detail about the asteroid.

Astronomers have recently discovered an asteroid, 2002 NT7,

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GMAT Sentence Correction (SC - EA only) Questions

Astronomers have recently discovered an asteroid, 2002 NT7,

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