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Abhi077
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08 Jan 2020, 12:22
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A
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It is difficult to say precisely how many species of insects there are on Earth, in part because it is often hard to distinguish between a separate species and a variety of one, but scientists who have to give an estimate usually place the number at around 950,000 unique species.
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
Source- Prep4Gmat
shameekv1989
08 Jan 2020, 13:22
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I would go with C on this one.
It is difficult to say precisely how many species of insects there are on Earth, in part because it is often hard to distinguish between a separate species and a variety of one, but scientists who have to give an estimate usually place the number at around 950,000 unique species.
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
we need between and contruction so D and E are out.
"them" in B looks ambiguous as it can be either (a separate species and variety of species of insects) or (separate species and variety of species within those in separate species)
Secondly scientists who have to sounds as if they are forced to give a number - I mean it sounds kinda awkward to say that way.
Therefore I would go with C.
It is difficult to say precisely how many species of insects there are on Earth, in part because it is often hard to distinguish between a separate species and a variety of one, but scientists who have to give an estimate usually place the number at around 950,000 unique species.
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
we need between and contruction so D and E are out.
"them" in B looks ambiguous as it can be either (a separate species and variety of species of insects) or (separate species and variety of species within those in separate species)
Secondly scientists who have to sounds as if they are forced to give a number - I mean it sounds kinda awkward to say that way.
Therefore I would go with C.
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08 Jan 2020, 17:16
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Abhi077
It is difficult to say precisely how many species of insects there are on Earth, in part because it is often hard to distinguish between a separate species and a variety of one, but scientists who have to give an estimate usually place the number at around 950,000 unique species.
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
A. and a variety of one, but scientists who have to give an estimate usually place
B. and a variety of them, with scientists having to give an estimate usually placing
C. and a variety of one, but scientists who give an estimate usually placed
D. or a variety of them, but scientists who have given an estimate usually placed
E. or a variety of them, but scientists who have an estimate to give usually placing
Source- Prep4Gmat
I said A.
First part: You are comparing "between a separate species and " ... "a variety of one"
I took out the phrase "a variety of them" since "them" is plural and you are comparing species with itself. However, even to me this was shaky logic and moved on.
The deal breaker for me was the verb "place". You want present tense. At the very beginning of the sentence, the verb is present. (keeping parallel)
