OFFICIAL EXPLANATION
Project SC Butler: Sentence Correction (SC1)
For SC butler Questions Click Here THE PROMPTQuote:
Geological test results
are indicating that extensive scheelite’s (calcium tungstate’s) deposits exist in the river valley, and large corporations are eager to begin the commercial exploitation of the tungsten concentrates.
• Issues
→ verb tense
→ possessive
→ noun-adjective
→ diction/usage
→ concision
→ idiom
THE OPTIONSQuote:
A)
are indicating that extensive scheelite
’s (calcium tungstate
’s) deposits exist in the river valley, and large corporations are eager
• possessive case error
→ the words
scheelite's and
tungstate's are incorrect in this instance (although not so in another option)
→ when in doubt, choose a simpler or more familiar case and use its pattern to help you.
We can sensibly say, for example, that
gold and silver deposits exist in the river valley, but we would not say that
gold's and silver's deposits exist in the river valley. → the first words in the phrases should be
scheelite deposits and
tungsten deposits. Those highlighted words are called
noun-adjectives.That is, both
scheelite and
tungsten are usually nouns but in this case should have their apostrophes removed so that they can be used as adjectives to describe another noun.
The noun-adjective always precedes the noun it describes. No exceptions.
English contains quite a few of these noun-adjectives:
→ sports car
→ corn bread
→ physics teacher
We need noun-adjectives here instead of possessive nouns.
• verb tense
are indicating GMAC prefers simple present and simple past unless reason exists to change those tenses.
"Are indicating" is present progressive tense that typically describes an ongoing action.
Unless the test results are changing constantly, those test results should take the simple present verb
indicate.ELIMINATE A
Quote:
B) indicate extensive scheelite (calcium tungstate) deposit
s' existence in the river valley, and large corporations are eager
• possessive case error—the opposite of the problem in option A
In
this case, before the word
existence, we have
deposits.
Let's switch the words around slightly.
→ The results indicate the existence
of what?
Of extensive scheelite deposits.
That "of" word tells us that
(1)
deposits should be in the possessive case. ("of" indicates possession)
(Whose existence? Tungsten deposits'.)
and
(2)
deposits does not function well as a noun-adjective.
Quote:
C)
indicate that extensive
deposits of scheelite (calcium tungstate) exist in the river valley, and large corporations
are eager• No errors
→ The present simple verb
indicate accords with what the results do. They "indicate" [something].
→ The phrasing
deposits OF scheelite (calcium tungstate) is a lot clearer than related phrasing in options A and B
→ The present simple verb
are eager suits the context and the logic.
KEEP
Quote:
D) indicate
[the] existence of extensive deposits of scheelite (calcium tungstate) in the river valley, and large corporations
are in a state of eagerness• verb tense
There is no reason to use
are in a state of eagerness.Options A, B, and C demonstrate that the phrase
are eager both captures the sentiment and is concise.
If you are in doubt, compare C, which we have determined is pretty good, to option D.
No contest. Option C ("are eager") is the better sentence.
• concision
Option D is not concise.
Concision really is a thing: if you can say the same thing in fewer words and be just as clear, choose fewer words.
ELIMINATE D
Quote:
E) indicate
[that] extensive scheelite (calcium tungstate) deposits are in the river valley, and large corporations
are in eagerness• Usage/diction
There is no such thing as "corporations are in eagerness."
Option E is just flat wrong in terms of usage; the words
corporations are in eagerness sound nonsensical to a native speaker.
In fact, the phrase
in eagerness is a diction error regardless of to whom or to what it is attached.
→
wrong: The children are in eagerness to attend the parade.
→
wrong: The brokers are in eagerness to short sell certain stocks.
• Idiomatic verb construction: indicate should be usually be followed by
thatEliminate E.
The answer is C.