Choose the option that best completes the gap(S).
The train …… before I arrived?
- was leaving
- has left
-
had left
- would leave
The correct answer is: C
Explanation
"Had left" is in the past perfect tense, which is used to indicate an action that occurred before another action in the past. In this context, the train's departure (leaving) happened before the speaker's arrival, so the past perfect tense "had left" is appropriate.
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