Choose the correct passive form: Someone has stolen my bicycle.

  • A. My bicycle has stolen.
  • B. My bicycle has been stolen.
  • C. My bicycle was been stolen.
  • D. My bicycle is stolen by someone.

Explanation

The present perfect active becomes has or have been plus the past participle in the passive, and the vague agent someone is normally dropped. Omitting been leaves an active construction that says the bicycle did the stealing. Choosing the passive here is natural because the identity of the thief is unknown.

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