OFFICIAL EXPLANATIONProject SC Butler: Sentence Correction (SC1)
• Overview
→ em dashes are often used to set off parenthetical (nonessential) information.
They function as commas in this context. (Sometimes they are used in place of a colon.)
→ We cannot use a simple past tense verb such as
rang after an em dash that follows the subject.
For one thing, phrases flanked by em dashes (or commas) are non-essential, but if
rang were a simple past tense
main verb, it certainly could not be part of a nonessential clause and thus removeable!
Nor should an em dash (or comma) come between a subject [bell] and a verb [rang].
→ another example,
wrong: The building
, tilted towards the horizon.
→ another example,
wrong: Susanna, rode her bike to the library.
Grammatically, that "r_ng" word
cannot be
rang.
The "r_ng" word must be a modifier.
→
COMMA + rung modifies the noun that precedes it: bell (or "Great Paul")
→ the past participle (verbED) modifier
rung is a reduced relative clause
That is, an imaginary "original" sentence stated, "The 16.5-ton bell known as “Great Paul”—
which was rung traditionally at one o’clock each day—was the largest bell in the British Isles until the casting of the Olympic Bell for the 2012 London Olympics.
→
which was rung traditionally at one o'clock each day is a relative clause
The relative pronoun is
which. It is the subject of the relative clause.
A clause contains a subject and a verb.
The verb for
which [referring to "bell" or "Great Paul"] is
was.
We shorten ("reduce") the relative clause. This move is common in sophisticated English prose.
We end up with a
past participle (verbED) modifierFrom
which was rung1. Remove the relative pronoun (which)
2. Remove the TO BE verb (was)
3. Leave the past participle (the verbED) (rung)
Reduced relative clause, WHICH
Correct:
The machine, which was nearly broken by overuse, gave off a strange odor.Correct:
The machine, nearly broken by overuse, gave off a strange odor.Reduced relative clause, WHO
Correct:
The child, who is funny and spirited, quietly endures a rough home life.Correct:
The child, funny and spirited, quietly endures a rough home life.Quote:
The 16.5-ton bell known as “Great Paul”—
rang traditionally at one o’clock each day—was the largest bell in the British Isles until the casting of the Olympic Bell for the 2012 London Olympics.
A)
rang traditionally at one o’clock each day—was the largest bell in the British Isles until the casting of the Olympic Bell
B) traditionally
rang at one o’clock each day—was the largest bell in the British Isles
until casting the Olympic Bell
In this construction, the bell known as "Great Paul" seems to be casting the Olympic Bell. No.C) traditionally rung at one o’clock each day—was the largest bell in the British Isles until the Olympic Bell
had been cast
D) traditionally rung at one o’clock each day—was the largest bell in the British Isles until the Olympic Bell was cast
E)
rang at one o’clock each day by tradition—
and was the largest bell in the British Isles until the Olympic Bell was cast
AND in this option must connect clauses, but no first full clause really exists because "rang" is in nonessential material • Split #1: Rung v. RangRemember that in the nonunderlined portion an em dash precedes
rang and
rung.
The
r_ng phrase is thus nonessential material.
As I explained above, an em dash sets off parenthetical (nonessential) information. We cannot put a main verb such as
rang in a nonessential part of the sentence. (A main verb cannot be "ejectable"!)
Nor can an em dash or comma separate a subject (bell) from its verb (which would be
rang).
That
r_ng word cannot be a verb.
That
r_ng word must be a modifier.
The options present two choices: the simple past tense verb
rang and the past participle modifier
rung.
Again, a verb cannot be set off by punctuation that makes the verb part of nonessential material.
Options A, B, and E incorrectly use the verb
rang and should use the modifier
rung.
ELIMINATE A, B, and E
• Split #2: had been is logically absurdOption C uses the past perfect tense verb
had been cast.
Past perfect, passive voice: HAD + BEEN + past participle (verbED)
Past perfect is used to describe the
earlier of two prior events.
Had been cast should be used to describe the event that came first.
Logically, though, the Olympic Bell must have been cast
after Great Paul had reigned as the largest bell in the Isles.
The verb tense
had been cast is illogical.
ELIMINATE C
The correct answer is D.→ (D) uses the past participle
rung to begin the nonessential clause
→ the verb tenses are consistent and parallel:
was the largest bell and
was castNOTESThis material is hard.
Do not worry if you do not quite understand it yet.
Read through my "overview" section above a few times.
Pay special attention to the examples (
which and
who reduced relative clauses).
See whether you can write one similar pair of sentences.
My original post contained typos in options D and E.
I have fixed them.
Takeaway: → main verbs cannot be set off by em dashes (or commas)
→ subjects and verbs should not be separated by an em dash (or a comma)
COMMENTSBecause the original contained typos, everyone gets kudos, which are well-deserved no matter how you answered because this question is hard enough without typos.
Good for you for trying and/or posting good questions!