16Hit1600
Standard English ConventionsMediumSubject-verb agreement with 'a number of'

Standard English Conventions practice question

A number of the letters in the archive ____ still unread.

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

  1. A. areCorrect
  2. B. is
  3. C. was
  4. D. has been

Answer: A. are

'A number of' means 'several', and takes a plural verb: 'a number of the letters are'.

Why the other answers are wrong

B. is
'Is' would suit 'the number of letters is', a different construction.
C. was
'Was' is singular.
D. has been
'Has been' is singular.

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