Question

Which of the following sentences contains an indefinite pronoun?
a. Her car's battery died because she left the lights on.
b. The flowers, which were just planted, need watering.
c. This is Mary's necklace.
d. The team congratulated one another on a job well done.

Answer 1

An indefinite pronoun is "a" or "an" - it will describe something not very well specified, something "indefinite".

In the examples above, the indefinite pronoun in found here:

The team congratulated one another on a job well done.
(I marked it with boldface).

Answer 2

The following sentence contains an indefinite pronoun: The team congratulated one another on a job well done.