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milanproda
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
61% (01:36) correct
39%
(01:32)
wrong
based on 942
sessions
History
Date
Time
Result
Not Attempted Yet
Contrary to popular belief, extinction is a common phenomenon in nature; in fact, the majority of the species that have existed on our planet are already extinct, with most disappearing long before Homo sapiens evolved.
A-have existed on our planet are already extinct, with most
B-have existed on our planet have already become extinct and most are
C-existed on our planet have already become extinct, most of which have
D-exist on our planet have already become extinct, most
E- exist on our planet are now extinct, with most
OA is
I was wondering...how can "have existed" be ok in this sense. Doesn't that have in the sentence make have existed a present perfect tense? And with that, implies that the species do exist? I thought that present perfect meant an ongoing event.
I guess what I am trying to say is: The species that are extinct can no longer exist, so why the have?
A-have existed on our planet are already extinct, with most
B-have existed on our planet have already become extinct and most are
C-existed on our planet have already become extinct, most of which have
D-exist on our planet have already become extinct, most
E- exist on our planet are now extinct, with most
OA is
I was wondering...how can "have existed" be ok in this sense. Doesn't that have in the sentence make have existed a present perfect tense? And with that, implies that the species do exist? I thought that present perfect meant an ongoing event.
I guess what I am trying to say is: The species that are extinct can no longer exist, so why the have?
Present perfect can also be used in situations when an event or action has just ended before the present; it does not matter whether it will recur or not.
E.G: I have just finished reading Hemingway’s novel.
He has been a crooked criminal until yesterday; now he preaches spirituality
Therefore, I think we can accept A in this case
Present perfect can also be used when we do not affix a specific and pointed time for the occurrence . say for e.g; Lately, there have been a number of under- sea earth quakes in the Pacific Ocean
_________________
E.G: I have just finished reading Hemingway’s novel.
He has been a crooked criminal until yesterday; now he preaches spirituality
Therefore, I think we can accept A in this case
Present perfect can also be used when we do not affix a specific and pointed time for the occurrence . say for e.g; Lately, there have been a number of under- sea earth quakes in the Pacific Ocean
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General Discussion
Posts: 283
I agree with you, I would prefer "existed" to "have existed". But the only choice with existed has a major problem in the end (".....most of which have disappearing" - totally incorrect). A may sound awkward but is the one left after elimination
Crick
Crick
milanproda
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Thanks crick but i still dont understand how present perfect works in this situation
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Posted from my mobile device
UtterNonsense
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A for me
"have existed" sound good over here. It includes all the species which were there from the very beginning to the ones that are now - present perfect makes sense.
"have existed" sound good over here. It includes all the species which were there from the very beginning to the ones that are now - present perfect makes sense.
Present perfect also makes sense when you don't know the timing of the event.
For example "Sam has seen Europe". Here the time when Sam saw Europe is not clear.
I think in the same context we can use present perfect in the above quesion. Hence the answer is "A"
For example "Sam has seen Europe". Here the time when Sam saw Europe is not clear.
I think in the same context we can use present perfect in the above quesion. Hence the answer is "A"
milanproda
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This feels like a tricky one, hopefully someone has a more concrete answer
LifeChanger
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i chose A after eliminating other choices,but even i would have preferred 'existed' rather than 'have existed'
daagh
Contrary to popular belief, extinction is a common phenomenon in nature; in fact, the majority of the species [b]that have existed on our planet are already extinct,[/b] with most disappearing long before Homo sapiens evolved.
Selected B, I thought "that have existed on our planet are already extinct" as a essential modifier and there is no working verb in sentence, but looks like I missed something. Can someone please put light why this is not acting as a modifier (because of comma ?)?
Thanks in advance.
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rphardu
You are missing "are" in the last part of the sentence in B " and most are disappearing" which is incorrect.
Among all the choices A is the best.
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milanproda
i chosen B. i dont know whats wrong with B. could you please explain it bit further. lets quantify the scenario. God sent 100 species at first to earth. out of 100, 80 have become extinct before before introducing homo sapiens. umm....now it is seems a bit clear to me. the intended meaning is distorted. it means 80 species have already extinct and the process is continuing BUT the intended meaning is that Homo sapiens is 101th species. so when homo sapiens is introduced 80 species dont existed on earth......please clarify me. am i right or wrong.
regards.
Quickly eliminate C/D/E from the beginning of each. A/B remain. Eliminate B because "most are disappearing".
narangvaibhav
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IMO A... was easy to trace because of "disappearing" after the underlined portion.
IMO A it is...though existed would have made this a better choice. Other options don't fit correctly.
A: It is stated that extinction is a common phenomenon hence it's a continuing process We are talking about extinct species: some of them could have ceased to exist yesterday --> present perfect.
B: the species are disappearing long before Homo Sapiens evolved (wrong use of tenses)
C: have disappearing - wrong
D and E: wrong use of "exist" in present simple: those species no longer exist
B: the species are disappearing long before Homo Sapiens evolved (wrong use of tenses)
C: have disappearing - wrong
D and E: wrong use of "exist" in present simple: those species no longer exist
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Ok..I get everyone's explanation now.
But, can someone explain to me when it is "proper" to use with after comma. A few examples would be greatly appreciated
But, can someone explain to me when it is "proper" to use with after comma. A few examples would be greatly appreciated
Posts: 191
Contrary to popular belief, extinction is a common phenomenon in nature; in fact, the majority of the species that have existed on our planet are already extinct, with most disappearing long before Homo sapiens evolved.
A-have existed on our planet are already extinct, with most //answer
B-have existed on our planet have already become extinct and most are // are is incorrect and we dont need a second have
C-existed on our planet have already become extinct, most of which have // have disappearing is incorrect
D-exist on our planet have already become extinct, most // exist is incorrect
E- exist on our planet are now extinct, with most // same as D
A-have existed on our planet are already extinct, with most //answer
B-have existed on our planet have already become extinct and most are // are is incorrect and we dont need a second have
C-existed on our planet have already become extinct, most of which have // have disappearing is incorrect
D-exist on our planet have already become extinct, most // exist is incorrect
E- exist on our planet are now extinct, with most // same as D
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I've also chosen A, tough at first I was also looking for an answer without Present Perfect tense. Actually, I remember to have read that Present Perfect can sometimes be used for situations, in which the activity is over, but you stil have the effects of what has happened. In this case all animals are still extinct, which is probably the best explanation why Present Perfect is acceptable here.
Let me know if you have any questions.
Best,
Let me know if you have any questions.
Best,
Why the with, on answer A, is correct? It is modifying extinct. Shouldnt' be incorrect?
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