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Standard English ConventionsMediumColon before the one explanation

Standard English Conventions practice question

There was only one explanation ____ a copied key.

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

  1. A. left:Correct
  2. B. left;
  3. C. left
  4. D. left, it was

Answer: A. left:

A colon introduces the explanation that the sentence announces.

Why the other answers are wrong

B. left;
A semicolon needs a full sentence after it.
C. left
Nothing separates the two ideas.
D. left, it was
A comma splice.

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