Multiple choice

Because it was structurally unsafe [a]/and too expensive to repair,[b]/ the 75 years old building[c]/ had to be demolished.[d]

  1. a

  2. b

  3. c

  4. d
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When a compound adjective (75 years) comes before a noun, it must be hyphenated. '75 years old building' should be '75-year-old building'. This is a punctuation error requiring hyphens in the compound adjective.

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