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Stem Cell Research

Expert replies
by dongkim2 » Wed Jun 16, 2010 4:14 pm
Scientists have recently received permission to research embryonic stemm cells, derived from blastocysts or early-stage embryos, that they believe to be capable of generating new cell growth and curing previously incurable ailments.

(A) that they belive to be capable
(B) that they belive are capable
(A) that they belive will be capable
(A) belived as capable
(A) belived to be capable

OA: A

Source: Kaplan GMAT 800 2008-2009 Edition page 190

The book explains that the phrase "that they believe" calls for the subjunctive mood. Therefore, it needs "to be" completed by the verb to be in its infinitive form. Can anyone explain in more detail when "to be" can be used? Thanks!
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Source: — Sentence Correction |

by hardik.jadeja » Wed Jun 16, 2010 5:08 pm
I don't think that the sentence calls for the subjunctive mood. Am i missing something?
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by hardik.jadeja » Wed Jun 16, 2010 5:14 pm
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by dongkim2 » Wed Jun 16, 2010 5:31 pm
Hardik,

Thanks for providing the link!
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