16Hit1600
Standard English ConventionsHardComma before 'for' meaning 'because'

Standard English Conventions practice question

The bridge was closed to traffic ____ inspectors had found cracks in two of its piers.

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

  1. A. , forCorrect
  2. B. for
  3. C. ; for
  4. D. , for,

Answer: A. , for

Here 'for' means 'because' and joins two complete clauses as a coordinating conjunction, so a comma goes before it.

Why the other answers are wrong

B. for
Without the comma, 'closed to traffic for inspectors' misreads as closed for the benefit of inspectors.
C. ; for
A semicolon already joins the clauses; 'for' after it is nonstandard.
D. , for,
No comma follows the conjunction.

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