The correct option to complete the sentence "We got to the hall after the play ...." is C. had started. Let's break down why this is the correct choice and why the other options are less suitable. Explanation of the Correct Answer (C. had started)

1. Understanding the Context: The sentence indicates a sequence of events. The phrase "after the play" suggests that the play began before the action of "getting to the hall" occurred.
2. Use of Past Perfect Tense: The phrase "had started" is in the past perfect tense. The past perfect is used to describe an action that was completed before another action in the past. In this case, the play's starting is the first action, and "getting to the hall" is the second action that happened afterward.
3. Sequence of Events: By using "had started," we clearly communicate that the play was already in progress when we arrived. This helps the reader understand the timeline of events accurately.

Why the Other Options Are Incorrect

• A. is started:
• This option uses the present simple tense, which is inappropriate here because the sentence refers to past events. "Is started" implies that the play is currently starting, which does not fit the context of arriving after it has already begun.
• B. was starting:
• This option uses the past continuous tense. While it indicates that the play was in the process of starting at the time we arrived, it does not convey the completion of the action before we got there. It suggests that the play was still in the act of starting when we arrived, which is less precise than "had started."
• D. has started:
• This option uses the present perfect tense, which is used to describe actions that have relevance to the present moment. Since the sentence is clearly about past events, "has started" is not suitable. It implies that the play's starting has an ongoing relevance, which does not align with the context of arriving after it has already begun.

Summary of Key Points

• Correct Answer: C. had started (past perfect tense indicates an action completed before another past action).
• Context Matters: The sequence of events is crucial; the play started before we arrived.
• Tense Usage: Understanding the correct tense is essential for conveying the right meaning in sentences.
• Avoiding Confusion: Each incorrect option fails to accurately represent the timeline of events or uses the wrong tense for the context.

Revision Summary

• The correct answer is C. had started because it uses the past perfect tense to indicate an action completed before another past action.
• The other options (A, B, D) are incorrect due to their inappropriate tense usage for the context of the sentence.
• Always consider the sequence of events when choosing verb tenses in sentences.
• Understanding tense usage is crucial for clear and accurate communication in English.