16Hit 1600
Standard English ConventionsHardFragment repaired by attachment

Standard English Conventions practice question

Ice cores showed that the climate had flipped within a single human ____ overturned the assumption that such shifts take millennia.

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

  1. A. levels, a discovery thatCorrect
  2. B. levels. A discovery that
  3. C. levels; a discovery that
  4. D. levels a discovery that

Answer: A. levels, a discovery that

'A discovery that overturned…' is not a sentence; attached with a comma, it becomes an appositive describing the finding.

Why the other answers are wrong

B. levels. A discovery that
Set off by a period, 'A discovery that overturned…' is a fragment.
C. levels; a discovery that
A semicolon must have a complete sentence on each side, and the second part is not one.
D. levels a discovery that
With no punctuation, the appositive collides with the clause before it.

More Standard English Conventions questions

Not affiliated with the College Board. SAT is a trademark of the College Board.