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

Standard English Conventions practice question

The bridge was closed to lorries ____ its central span had begun to sag.

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

  1. A. becauseCorrect
  2. B. because,
  3. C. , because,
  4. D. ; because

Answer: A. because

'Because its span had begun to sag' gives the essential reason and takes no comma.

Why the other answers are wrong

B. because,
A comma after 'because' separates it from its clause.
C. , because,
Commas on both sides isolate the conjunction.
D. ; because
A semicolon can't introduce a dependent clause.

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