The Parthenon is larger than usual for a Doric temple, with eight columns on the short sides and seventeen on the long ones rather than the typical six and thirteen.
(b) is usual
(c) has been usual
(d) one usually is
(e) it is usual
Can someone please break down the grammar errors for each answer choice, in addition, explain why (B) is a preferred answer choice over (D).
short sentence correction options may seem easier at first glance, but the correct answer often reflects a minor grammar or style issue, so we need to be extra careful on these.
B is superior to A for parallelism reasons: "IS larger than IS usual" maintains parallelism.
C changes the tense, which changes the meaning of the sentence.
D has the ambiguous pronoun "one", which technically refers to the closest preceding legal parent noun. In this sentence, the only preceding legal parent noun is "the Parthenon", so D actually reads:
The Parthenon is larger than the Parthenon usually is
which makes absolutely no sense - we want to compare the Parthenon to other Doric temples, not to itself.
E introduces "it", which is grammatically and stylistically wrong.
Hope that helps!
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