pqhai wrote:
First, "such as" vs "like".
The intended meaning is the FACT "feral swine are unwelcome" is like the FACT "Asian carp are unwelcome in Lake Michigan".
Clearly, Asian carp is not an example of feral swine.
In addition, "such as" refers examples of the same category. For example: I love eating Asian fish such as catfish and Asian carp.
So, A and E are out.
Second, Present perfect VS simple present/progressive.
B is wrong because present perfect tense is wrongly used. Because we want to mention two similar facts ==> simple present / progressive is correct
C is also wrong because the usage of "are" is redundant. For example: She is tall and is smart ==> the second "is" is not necessary and should be eliminated.
D is correct, the structure is "X are unwelcome BUT far larger......:
"feral swine are unwelcome but far larger, more vicious and mounted on four legs"
Hope it helps.
I second ankurgupta03, I do not like this question at all.
I just wanna point out a thing that is not correct from your explanation:
the sentence :
"She is tall and is smart" is perfectly correct and there is no better choice between that one and
"She is tall and smart ".
This is a parallelism problem: generally speaking the parallel structure has some "signal words" that tell you where the parallel structure begins and ends.
"
Both _X_ and _Y_" in this case the X and Y part MUST be parallel, because they are contained between the signal-words "both/and".
In your example there is no "starting" point for the parallelism. What I mean is that to identify a proper parallel structure you start from the "signal"-and-, look to the right
She is tall and
is smartand ask your self: is that part matched in the previous part? Yes, by
"is tall"- same structure.
Also "She is tall and smart" is correct as
smart is matched by
tall.
Since here the parallelism has no predefined starting point, both are correct.If your sentence were "She is
both tall
and smart", only this option would be correct because "both" tells you that the parallel structure begins from the adj tall, which is matched by the adj smart.
Hope it's clear