16Hit1600
Standard English ConventionsMediumAgreement with a gerund subject

Standard English Conventions practice question

Reading the instructions carefully ____ most of the mistakes people make when assembling the desk.

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

  1. A. preventsCorrect
  2. B. prevent
  3. C. have prevented
  4. D. are preventing

Answer: A. prevents

The subject is 'Reading the instructions carefully' — a single activity — so the verb is singular: 'prevents'.

Why the other answers are wrong

B. prevent
'prevent' is plural, but the subject is the singular activity of reading, not 'instructions'.
C. have prevented
'have prevented' is plural.
D. are preventing
'are preventing' is plural.

More Standard English Conventions questions

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