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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Stem Cell Research
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hardik.jadeja
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hardik.jadeja
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