16Hit1600
Standard English ConventionsHardNo comma before a restrictive 'who' clause

Standard English Conventions practice question

The volunteers ____ trained as first-aiders wear a green armband on race day.

Which choice completes the text so that it conforms to the conventions of Standard English?

  1. A. whoCorrect
  2. B. , who
  3. C. who,
  4. D. ; who

Answer: A. who

'Who trained as first-aiders' picks out which volunteers, so no commas.

Why the other answers are wrong

B. , who
A comma would make the clause nonessential, implying all volunteers trained.
C. who,
A comma after 'who' cuts it from its verb.
D. ; who
A semicolon can't introduce a relative clause.

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