Multiple choice

Laboratory tests revealed [a]that the metal using in[b] this particular model [c]was actually an alloy of inferior quality[d].


  1. a

  2. b

  3. c

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

The passive voice should use the past participle 'used', not the present participle 'using'. The metal is not doing the using - it is being used by others. The correct phrase is 'the metal used in this particular model' or 'the metal that was used in this particular model'.

Keep practicing — related questions