Solution says that correct answer is E. I would request someone to explain how use of having is justified.
can someone explain how "have a serious impact" and "severely impede" are parallel?
I'm happy to respond.
This is an OK question, not really the high quality as a GMAT SC practice question. At least it has one perfectly clear and unambiguous answer.
Here is the question again: The expected rise in the price of oil could be a serious impact to industrialized nations and severely diminish the possibility to have an economy free of inflation.
(A) be a serious impact to industrialized nations and severely diminish the possibility to have
(B) seriously impact on industrialized nations and severely impede the possibility to have
(C) seriously impact on industrialized nations and severely impede the possibility of having
(D) have a serious impact on industrialized nations and severely impede the possibility to have
(E) have a serious impact on industrialized nations and severely diminish the possibility of having
The clear answer is (E)
is wrong because of the idiom mistake at the end. The "possibility to have
" is idiomatically incorrect. What we would say in English is the "possibility of having
." Also, "diminish the possibility
" sounds more natural than "impede the possibility
's question betrays a fundamental and very common misunderstanding about parallelism. Two verbs can be in parallel, particularly if they share the same subject, as they do here. Two verbs in parallel simply have to be full verbs, correct in SVA. They don't need to match in any other way
. It doesn't matter if one has adverbs and the other doesn't. They don't even have to be the same tense. See: https://magoosh.com/gmat/2012/gmat-gram ... rb-tenses/
"have a serious impact
" ==> "have
" is a full verb
" ===> "impede
" is a full verb
Right there, we are done. Two full verbs, so the parallelism is legitimate. Students get into all kinds of trouble because they feel they have to overmatch two things in parallel, and that's just not the case.
Here is a set of free GMAT idiom flashcards that you might find helpful:https://gmat.magoosh.com/flashcards/idioms
Here's a high quality GMAT SC practice question: http://gmat.magoosh.com/questions/3597
Magoosh Test Prep