Multiple choice

Direction: The following sentence tests correctness and effectiveness of expression. Part of each sentence or the entire sentence is underlined; beneath each sentence are five ways of phrasing the underlined material. Choice A repeats the original phrasing; the other four choices are different. If you think the original phrasing produces a better sentence than any of the alternatives, select choice A; if not, select one of the other choices.
Before it was known to be carcinogen, insulin was widely used to be insulation and fireproofing.

  1. to be insulation and fireproofing

  2. for insulation and fireproof

  3. for insulation and fireproofing

  4. for insulating and fireproofing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(C): Whenever “used” is followed by a noun, it should either be “used as” or “used for”. Choice C uses both nouns and correct idioms. 'Insulating' in (D) is not a noun but an adjective, which should have been followed by a noun (non-existent). Hence, incorrect

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