The following sentence has been split into four segments. Identify the segment that contains a grammatical error. After the concert was over, / they go to a restaurant, / had dinner together / and talked until midnight.

Correct — A. Fix the time frame before you look for the error. The sentence opens with 'After the concert was over' and ends with had dinner and talked — every other finite verb is past.

Segment (a) prints they go, a present-simple verb dropped into that past narrative. It has to read they went.

The correction restores one chain of past verbs: went ... had ... talked, all sharing the subject 'they'. Option (a) is the segment that breaks the sequence.

Why the others are wrong

• (b)
  had dinner together — Had dinner is past simple and already agrees with the frame. Reading it as a wrong form of 'have had' invents an error the sentence does not contain.
• (c)
  and talked until midnight — Talked is past simple, joined by 'and' to had dinner and sharing the same subject. The coordination is correct as printed.
• (d)
  After the concert was over, — After the concert was over is a well-formed past-time clause, and it is this clause that sets the past frame every later verb must follow.

Error-spotting items split one sentence into four parts and hide a single fault in one of them. The fault is a grammatical one, so read for verb form, agreement, adverb form and prepositions rather than for style.

This one tests sequence of tenses. Once a time clause anchors a narrative in the past, the finite verbs that follow stay past unless the meaning demands a shift.

The give-away is that three segments agree with each other and one does not. Compare the segments against each other, not against your ear.

Key facts

• In a past narrative every finite verb stays in the past unless the sense demands a shift.
• 'After' followed by a past-simple clause anchors the whole sentence in past time.
• The corrected sentence reads: After the concert was over, they went to a restaurant, had dinner together and talked until midnight.

Common traps

• Hunting for a punctuation or article fault when the error sits in a verb form
• Accepting 'they go' because the segment sounds natural read on its own

No directly related past PYQ was found.