16Hit1600
Standard English ConventionsHardNo comma before an essential 'who' clause

Standard English Conventions practice question

The miller ____ ran the mill until 1962 taught the current owner to dress the stones.

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 ran the mill until 1962' identifies which miller: no commas.

Why the other answers are wrong

B. , who
A comma before an essential clause is wrong.
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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