Choosing Between Who and Whom

For each sentence, choose the correct word—either who or whom. For help with this exercise, see “Use the Right Type of Pronoun.”

  1. Face-recognition software is supposed to identify possible criminals (who/whom) cameras have photographed in public places.

    Question

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    Choosing Between Who and Whom - Question 1
  2. Use of such software, which compares security-camera images with photos from a criminal database, can help law enforcement officials determine (who/whom) they want to question about a crime.

    Question

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    Choosing Between Who and Whom - Question 2
  3. Police will try to detain any person (who/whom) is identified by the software as a criminal.

    Question

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    Choosing Between Who and Whom - Question 3
  4. Police know that the software will single out some innocent people (who/whom) resemble criminals.

    Question

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    Choosing Between Who and Whom - Question 4
  5. However, police and nervous Americans are hopeful that this method can help identify terrorists (who/whom) appear in airports or other locations.

    Question

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    Choosing Between Who and Whom - Question 5