16Hit1600
Standard English ConventionsEasyComma after an introductory 'when' clause

Standard English Conventions practice question

When the last train has ____ the station cat comes out to patrol the platform.

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

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

Answer: A. gone,

An introductory dependent clause is followed by a comma.

Why the other answers are wrong

B. gone
Runs the clauses together.
C. gone;
A semicolon can't follow a dependent clause.
D. gone, and
'And' has no clause before it.

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