AR15J wrote:
sometimes it works as a dummy subject
Hi AR15J, it is slightly fallacious to think ofit asnot referring to anything. That is veryunlikely to happen on GMAT.
However, a unique feature aboutit is thatit can appearbefore the antecedent (thenoun/noun-phrase thatit is referring to). For example:
It takes great courage to prevail amidst uncertainty.
A casual look at the above sentence might suggest thatit doesnot refer to any noun. However, a closer look would reveal thatit does refer
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