Select the option that expresses the following sentence in active voice. The concert tickets were bought by my friend

Correct — D. The passive verb is were bought — was/were plus a past participle, which is the simple past passive.

A voice change moves the doer to the front and leaves the tense alone.

Simple past passive were bought becomes simple past active bought. my friend, the agent after by, becomes the subject, and the concert tickets becomes the object.

That is My friend bought the concert tickets — option (d).

Why the others are wrong

• (a)
  My friend has bought the concert tickets. — has bought is present perfect. Its passive would read the tickets have been bought, not were bought, so the tense has been changed.
• (b)
  My friend buys the concert tickets. — buys is simple present, whose passive is the tickets are bought. That shifts the sentence from a finished purchase to a habit.
• (c)
  My friend is buying the concert tickets. — is buying is present continuous, whose passive is the tickets are being bought — an action still going on, which were bought rules out.

Changing voice rearranges a sentence. It never changes when the action happened.

So the safe method is two steps: read the tense off the passive auxiliary, then write the active in that same tense.

was/were + past participle is simple past, have/has been + participle is present perfect, am/is/are being + participle is present continuous.

The by-phrase names the doer, and the doer becomes the subject of the active sentence.

Key facts

• Active-to-passive conversion never changes the tense of the verb.
• Simple past passive is was or were plus the past participle.
• The agent introduced by by becomes the subject of the active sentence.

Common traps

• Reading were bought as a perfect and answering has bought.
• Keeping the original subject in front and only deleting the word by.
• Changing the tense to whichever active option sounds most natural.

No directly related past PYQ was found.