Choose the correct verb: Ten kilometres ____ a long way to walk.

  • A. are
  • B. is
  • C. were
  • D. have been

Explanation

A measurement of distance, time, money or weight is treated as a single unit and takes a singular verb, even though the noun is plural in form. The same rule gives twenty rupees is enough and three hours is too long. The plural verb would suggest the kilometres are being counted separately.

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