16Hit1600
Standard English ConventionsVery hardComma before a nonrestrictive 'which' clause

Standard English Conventions practice question

The recording was made on a ____ which the archive has since restored.

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

  1. A. wax cylinder,Correct
  2. B. wax cylinder
  3. C. wax cylinder;
  4. D. wax cylinder, and

Answer: A. wax cylinder,

'Which the archive has since restored' adds information about the cylinder; it takes a comma.

Why the other answers are wrong

B. wax cylinder
A 'which' clause adding information needs a comma.
C. wax cylinder;
A semicolon can't introduce a relative clause.
D. wax cylinder, and
'And which' has no earlier 'which' to pair with.

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